Fiberglass Molded Products - Grating Pacific

Fiberglass
Molded
Products
Corrosion Resistant
Slip Resistant
Low Maintenance
Fire Retardant
High Strength-to-Weight Ratio
Nonconductive
Impact Resistant
Low Installation Cost
Long Service Life
Superior Ergonomics
High Performance Composite Solutions
Q U A L
I T Y C E R T I F
ISO
I E D
9001-2000
FA C
I L
I T I E S

Fiberglass Molded Products
Combining unmatched corrosion resistance with strength,
long life and safety, Fibergrate sets the standard for
fiberglass reinforced plastic (FRP) molded products. With
more than ten custom resins, Fibergrate products are proven to
deliver years of reliable service, even in the most demanding corrosive
conditions — conditions which cause conventional metallic and wood products
to deteriorate rapidly.
Fibergrate products are lightweight and easy to fabricate. Savings on labor
and equipment often make the total installed cost of Fibergrate products
comparable to that of steel. Combining these installation savings with low
maintenance, long life and worker safety, Fibergrate products offer a life
cycle cost that is significantly lower than that of metallic products.
Fibergrate's molded grating lines include Fibergrate ® and
Chemgrate ® molded grating for most applications, Fibergrate ®
molded high load capacity grating for H-20 and forklift traffic,
Micro-Mesh ® access flooring, AirMesh ® screening and
Multigrid ® grating. For applications requiring a solid walkway,
Fibergrate carries Fiberplate ® and Chemplate ® structural floor panels as
well as Chemdeck ® and Fibergrate ® covered grating. Stair solutions include Fibertred ® and Chemtred ®
stair treads panels for industrial and commercial use, covered stair treads for architectural applications and
stair tread covers for existing stairways. Ergonomic work platform solutions include Safe-T-Stands ® which
are available in varying heights and raised ergonomic workmats.
Fibergrate's complete line of molded products and turnkey services offers a variety of solutions for most
applications.
• Architectural
• Bridge & Highway
• Chemical
• Commercial
• Food & Beverage
• Manufacturing
• Metals & Mining
• Microelectronics
• Oil & Gas
Fibergrate Markets
• Offshore
• Pharmaceutical
• Power
• Pulp & Paper
• Recreation
• Telecommunications
• Transportation
• Water & Wastewater
Fibergrate products
are lightweight
making them easy to
handle and install
Phone: 800-527-4043
www.fibergrate.com

Fibergrate ® Benefits
• Corrosion Resistance - the
use of more than ten premium
grade resin systems with a
thoroughly wetted fiberglass
process and a one-piece molded
construction ensures solid
structural integrity in tough
environments
• Slip Resistance - a meniscus
or permanent grit surface
provides a safe, slip-resistant
walking surface
• Low Maintenance - corrosion resistant and
requires no scraping, sandblasting or painting
• Fire Retardant - flame spread rating of 25
or less, as tested in accordance with ASTM
E-84; meets the self-extinguishing requirements
of ASTM D-635
• High Strength-to-Weight Ratio - less than
one-half the weight of steel grating allowing
easy removal for access below floor level and
installation with no heavy equipment and less
manpower
• Electrically and Thermally Nonconductive
- all-FRP construction provides additional worker
safety
• Impact Resistance - can withstand major impacts
with little structural damage and no failure
• Easily Fabricated - does not need heavy lifting
equipment or expensive tools; can be easily carried
by two workers; can be cut using standard circular
or saber saws fitted with abrasive blades; has
excellent utilization
• Electronically Transparent - does not affect
electromagnetic or radio wave frequencies
FRP vs. Steel
PRICE
VALUE = SERVICE LIFE
When comparing the price of Fibergrate fiberglass reinforced plastic (FRP) products to comparable metal or other
conventional products, there are several factors to consider.
One of the most important factors is the safety cost. Slips and falls are the second leading cause of industrial
accidents and one of the leading causes of death. The slip-resistant surfaces of Fibergrate products can dramatically
reduce accidental slips and falls. With each lost workday accident costing $50,000 to $100,000, Fibergrate could be the
least expensive solution available.
The initial, or first cost is usually figured on a square-foot basis. Fibergrate FRP material costs are typically higher than
metal products. Too often the product with the lowest price is selected, particularly in new construction projects, because
it seems to be the most economical. Unfortunately, the cheapest product often ends up costing more than Fibergrate FRP
due to high maintenance and replacements costs of corroded building materials. The National Association of Corrosion
Engineers estimates that the economic losses due to corrosion in the U.S. amount to $300 billion a year. Replacing
corroded, unsafe flooring is one of Fibergrate's biggest markets. In most cases, if Fibergrate FRP had been installed
initially, very few problems would have occurred.
Another important factor is installed cost. Fibergrate FRP products are often less expensive than metallic products
when installation costs are figured into the total price. Metal grating requires costly and time-consuming cutting and
welding, and must be “end-banded.” Fibergrate FRP can easily be fabricated with hand tools. Molded grating construction
requires no end-banding which saves time and money. Square mesh bearing bars run in both directions, maximizing
utilization. Fibergrate FRP products weigh less than metal, making it easier to handle and less expensive to transport.
The most important factor is total or life cycle cost. In highly corrosive applications, metal products will often
deteriorate in a few years or less. In the same installation, Fibergrate FRP products will last many times longer. Combined
with safety cost savings, this often makes Fibergrate the lowest cost product available. These are the reasons so many
companies have switched from conventional metallic products to Fibergrate FRP products.
Phone: 800-527-4043
www.fibergrate.com

Molded Grating Selection and Details
Fibergrate ® and Chemgrate ® Molded Grating
Brand Depth Mesh Standard Panel Sizes Wt. Per Open
Sq. Ft. Area
AirMesh ® 1/2" 1-1/2" x 1-1/2" square 4' x 8' (non-load carrying product) 0.8 lb 87%
Multigrid ® 1/2" 2" x 2" square 4' x 12', 4' x 15' (must be fully supported) 1.0 lb 82%
Chemgrate 5/8" 1" x 4" rectangular 12' x 4' 2.1 lb 58%
Fibergrate 3/4" 1" x 4" rectangular 10' x 3', 8' x 4' 2.5 lb 69%
Ecograte TM 3/4" 1" x 4" rectangular 8' x 4' 2.84 lb 46%
Fibergrate 3/4" 1-1/2" x 1-1/2" square 3' x 10', 4' x 8', 4' x 12' 2.0 lb 70%
Micro-Mesh ® 1" Top 3/4" sq, Btm 1-1/2" sq 4' x 12' 2.9 lb 44.4%
Fibergrate 1" 1" x 1" square 3.28' (1M) x 6.56' (2M) 3.58 lb 58%
Fibergrate 1" 1" x 4" rectangular 10' x 3', 8' x 4' 2.5 lb 69%
Fibergrate 1" 1-1/2" x 1-1/2" square 3' x 10', 4' x 8', 4' x 12' 2.5 lb 70%
Chemgrate 1" 1" x 4" rectangular standard 12' x 4', 12' x 3'-1/4" 2.7 lb 65%
Chemgrate 1" 1" x 4" rectangular heavy duty 12' x 4' 3.4 lb 52%
Chemgrate 1" 2" x 2" square 4' x 12' 1.7 lb 76%
Micro-Mesh ® 1-1/8" Top 1.04" sq, 2.09" sq Btm 3.28' (1M) x 9.84' (3M) 3.58 lb 53%
Fibergrate 1-1/4" 1-1/2" x 1-1/2" square 3' x 10', 4' x 8', 4' x 12', 5' x 10' 3.2 lb 70%
Fibergrate 1-1/2" 1-1/2" x 1-1/2" square 3' x 10', 4' x 8', 4' x 12', 5' x 10' 3.7 lb 70%
High Load 1-1/2" 1" x 2" rectangular 6' x 4' 6.2 lb 48%
Micro-Mesh ® 1-1/2" Top 3/4" sq Btm 1-1/2" sq 2' x 2', 4' x 12' (see page 18 for grating details) 5.0 lb 44%
Chemgrate 1-1/2" 1-1/2" x 1-1/2" square 4' x 12' 3.5 lb 69%
Chemgrate 1-1/2" 1-1/2" x 6" rectangular 12' x 4' 3.4 lb 67%
Fibergrate 2" 2" x 2" square 4' x 12' 4.0 lb 72%
High Load 2" 1" x 2" rectangular 6' x 4' 8.4 lb 48%
Chemgrate 2" 2" x 2" square 4' x 12' 4.1 lb 72%
See page 8 for surface selection.
Grating Details
4.00
0.75
PLAN VIEW
1.00 0.50 0.50
ELEVATION VIEW
SECTION PROPERTIES PER FT OF WIDTH
A = 3.36 IN 2 I = 0.16 IN 4 S= 0.375 IN 3
PLAN VIEW
1.00 0.762 0.238
1.00 0.762
0.238
0.816
0.32
1.00 0.50 0.50
ELEVATION VIEW
0.32
4.00
1.035
0.184
3/4" x 1" x 4"
Ecograte TM
Load Bars Run
Width Direction
# of Bars/Ft of Width
12
0.75
Load Bar
Width
1/2"
Load Bar
Centers
1"
1" x 1" x 1"
Square Mesh
Open Area
46%
Approx.
Weight
2.85 psf
Load Bars Run
Width Direction
# of Bars/Ft of Width
12 Open Area
Load Bar
Width
1/4"
Load Bar
Centers
1"
58%
Approx.
Weight
3.58 psf
Fibergrate
SECTION PROPERTIES PER FT OF WIDTH
SECTION PROPERTIES PER FT OF WIDTH
A = 2.62 IN 2 I = 0.23 IN 4 S= 0.43 IN 3
1.50
1.50
SECTION PROPERTIES
A = 2.34 IN 2 PLAN VIEW
0.75
0.75
ELEVATION
PER
I = 0.23 IN 4 0.30 0.24
0.30 0.24
VIEW
FT OF WIDTH
S= 0.37 IN 3 1" x 3/4" sq top
Micro-Mesh ®
Load Bars Run
Width Direction
# of Bars/Ft of Width
8
Load Bar
Width 44.4%
0.22 1/4"
Load Bar
1.063
Centers
1.50
0.75
Open Area
Approx.
Weight
1.5" 2.9 psf
1.5"
PLAN
1.5"
ELEVATION
A = 1.71 IN 2 VIEW
0.25"±
VIEW
I = 0.14 IN 4 1.5"
1"
S= 0.29 IN 3 1" x 1-1/2"
Square Mesh
# of Bars/Ft of Width
8
Load Bar Open Area
Width 70%
1/4"
Load Bar
Approx.
Centers
Weight
1-1/2" 2.5 psf
Fibergrate
Phone: 800-527-4043
www.fibergrate.com

Molded Grating Details
Grating Details
1"
1"
PLAN VIEW
0.25"±
0.375"±
ELEVATION VIEW
SECTION PROPERTIES PER FT OF WIDTH
4"
1"
1" x 1" x 4"
Rectangular Mesh
Load Bars Run
Width Direction
# of Bars/Ft of Width
12
Load Bar Open Area
Width 69%
1/4"
Load Bar
Approx.
Centers
Weight
1" 2.5 psf
Fibergrate
PLAN VIEW
2.085 [52.96] 1.0425 [26.48] 0.75 [19.05] 0.265 [6.73] 1-1/8" x 1" Sq Top
Micro-Mesh ®
2.085 [52.96]
# of Bars/Ft of Width
Open Area 6 Load Bar
53%
Width
1.0425 [26.48]
0.265"
Approx.
0.75 [19.05]
Weight
Load Bar
2.64 psf
Centers
2.085 [52.96] 1.0425 [26.48] 0.75 [19.05] 0.265 [6.73]
0.40 [10.16]
1.034
1.125 [28.58]
ALL DIMENSIONS ARE IN INCHES [MM]
ELEVATION VIEW
SECTION PROPERTIES PER FT OF WIDTH
A = 2.57 IN 2 I = 0.22 IN 4 S= 0.43 IN 3
PLAN VIEW
1.50
1.50
Load Bar
1.50 1.25 0.25
2"
2"
1.3125
ELEVATION VIEW
PLAN VIEW
0.25"±
ELEVATION VIEW
SECTION PROPERTIES PER FT OF WIDTH
A = 2.88 IN 2 I = 0.96 IN 4 S= 0.94 IN 3
2"
2"
1.25
0.1875
SECTION PROPERTIES PER FT OF WIDTH
A = 2.16 IN 2 I = 0.32 IN 4 S= 0.48 IN 3
1-1/4" x 1-1/2"
Square Mesh
# of Bars/Ft of Width
8
Width
1/4"
Load Bar
Centers
1-1/2"
Meniscus Not Available
Open Area
53%
Approx
Weight
3.58 psf
2" x 2"
Square Mesh
Fibergrate
#of Bars/Ft of Width
6
Load Bar Open Area
Width 72%
1/4"
Load Bar
Approx.
Centers
Weight
2" 4.0 psf
Fibergrate
SECTION PROPERTIES PER FT OF WIDTH
A = 2.85 IN 2 I = 0.51 IN 4 S= 0.65 IN 3
0.563"
1.5"
1.5"
1"
PLAN VIEW
0.25"±
ELEVATION VIEW
1.5"
1.5"
1" 0.313"
SECTION PROPERTIES PER FT OF WIDTH
A = 2.11 IN 2 I = 0.07 IN 4 S= 0.22 IN 3
4"
1-1/2" x 1-1/2"
Square Mesh
#of Bars/Ft of Width
8
Load Bar Open Area
Width 70%
1/4"
Load Bar
Approx
Centers
Weight
1-1/2" 3.75 psf
Fibergrate
5/8" x 1" x 4"
Rectangular Mesh
# of Bars/Ft of Width
12
Load Bar Open Area
Width 58%
5/16"
Load Bar Approx.
Centers Weight
0.625" 1" 1.8 psf
Chemgrate
4"
1"
1"
0.25"
0.5"
1"
1" x 1" x 4"
Standard
# of Bars/Ft of Width
12
Load Bar Open Area
Width 65%
1/4"
Load Bar Approx.
Centers Weight
1" 2.6 psf
Chemgrate
SECTION PROPERTIES PER FT OF WIDTH
SECTION PROPERTIES PER FT OF WIDTH
A = 2.62 IN 2 I = 0.22 IN 4 S= 0.43 IN 3 A = 4.13 IN 2 I = 0.34 IN 4 S= 0.69 IN 3
4"
1"
1"
0.375"
1"
0.625"
1" x 1" x 4"
Heavy Duty
# of Bars/Ft of Width
12
Load Bar Open Area
Width
3/8"
52%
Load Bar Approx.
Centers Weight
1" 3.4 psf
Chemgrate
Phone: 800-527-4043
www.fibergrate.com

Grating Details & Custom Products
Grating Details
6"
1.5"
1.5"
0.375"
0.625"
1.5"
1-1/2" x 1-1/2" x 6"
Rectangular Mesh
# of Bars/Ft of Width
8
Load Bar Open Area
Width 67%
3/8"
Load Bar Approx.
Centers Weight
1 1/2" 3.4 psf
Chemgrate
SECTION PROPERTIES PER FT OF WIDTH
SECTION PROPERTIES PER FT OF WIDTH
A = 3.60 IN 2 I = 0.67 IN 4 S= 0.89 IN 3 A = 1.27 IN 2 I = 0.11 IN 4 S= 0.21 IN 3
2"
2"
2"
0.25"
1"
0.25"
1" x 2"
Square Mesh
# of Bars/Ft of Width
6
Load Bar Open Area
Width 76%
1/4"
Load Bar Approx.
Centers Weight
2" 1.7 psf
Chemgrate
1.5"
1.5"
0.25"
1-1/2" x 1-1/2"
Square Mesh
# of Bars/Ft of Width
8
Load Bar Open Area
Width 69%
1/4"
2"
2"
0.313"
2" x 2"
Square Mesh
# of Bars/Ft of Width
6
Load Bar Open Area
Width
5/16"
72%
0.25
1.5"
1.5"
Load Bar Approx.
Centers Weight
1 1/2" 3.5 psf
2"
0.313"
2"
Load Bar Approx.
Centers Weight
2" 4.1 psf
Chemgrate
SECTION PROPERTIES PER FT OF WIDTH
A = 2.85 IN 2 I = 0.51 IN 4 S= 0.65 IN 3 SECTION PROPERTIES PER FT OF WIDTH
A = 2.88 IN 2 I = 0.96 IN 4 S= 0.94 IN 3
Chemgrate
Custom Molded Products
Fibergrate has the capability to offer molded grating configurations designed/manufactured to meet your
unique application requirements. Fibergrate's custom services include special molded grating configurations
as well as parts requiring high volume compression molding, RTM, and centrifugal castings processes. Using
our hand-lay-up methods, Fibergrate is able to create architectural details for building facades using FRP
materials.
In addition to our custom sizes and shapes, Fibergrate also offers specialty resins custom designed to meet
your specific needs. These special formulations are developed to address unique and demanding services and
applications, as well as niche market needs. We can engineer resin systems to address temperature, flame,
smoke and toxicity requirements. Our HSUV resin system was developed to address the intense UV affects
found in offshore applications. Fibergrate’s custom formulations with low smoke/toxicity properties were
engineered with the United States Navy for below-deck marine service.
NSF Standard
61-Certified
Fibergrate Composite Structures is now the only FRP manufacturer offering NSF
Standard 61-certified molded grating. Currently, this product is being offered in 2
resins systems: Our traditional IFR resin system and a food-grade, fire-retardant
vinyl ester resin. Standard color is light gray. Our NSF Std. 61-certified structural
shapes, handrails, ladders and pultruded components can be combined to create
valuable, long-lasting stair stiles, walkways and platforms.
Phone: 800-527-4043
www.fibergrate.com

Molded Grating Resins
Resin Systems
Corrosion in the workplace negatively impacts your bottom line. Each year, industrial plant executives eliminate
expensive corrosion-related maintenance problems by switching to Fibergrate molded grating. Various applications
present different requirements so Fibergrate has more than ten standard resin systems (the most in the industry) including
the new FGI-AM (food grade isophthalic polyester antimicrobial) available in both Fibergrate and Chemgrate Resins.
Fibergrate ® Resins
• Vi-Corr ® - A superior vinyl ester resin developed for
reliable performance in the toughest environments. It offers
outstanding resistance to a wide range of highly corrosive
situations, ranging from caustic to acidic. In fact, no other
resin system can match Vi-Corr's performance in highly
acidic environments. Color: orange or dark gray. Flame
spread: ASTM E84 rating of 25 or less. Certifications: UL
Classification available; DNV Type Approval No. F-16856;
USCG Accepted; ABS Type Approval No. 01-HS34733-X).
• IFR - This isophthalic polyester fire-retardant resin
formulation is designed for industrial and chemical processing
applications where corrosion resistance is important. Color:
green or dark gray. Flame Spread: ASTM E84 rating of 25 or
less. Certifications: UL Classification available.
• FGI-AM* - This improved food-grade isophthalic polyester
resin system offers antimicrobial properties to inhibit the
growth of mold on the surface of the composite to protect the
product itself along with the necessary corrosion resistance to
meet the requirements of the food and beverage industry.
Color: light gray. Flame Spread: ASTM E84 rating of 25 or
less. Certifications: USDA accepted.
• CORVEX ® - An economy polyester grating, Corvex
outperforms a number of competitive fiberglass and metal
products and meets the requirements for corrosion resistance
found in light industrial and water/wastewater applications. Color:
yellow, dark gray or dark green. Flame Spread: ASTM E84
rating of 25 or less. Certifications: DNV Type Approval No. F-
16856.
• XFR - This extra fire-retardant vinyl ester resin is
recommended for use where the fire potential is high.
Color: dark gray. Flame Spread: ASTM E84 rating of 10 or
less, a level exceeded by no other resin system. Certifications:
DNV Type Approval No. F-16856.
• ELS - This Extremely Low Smoke resin is an acrylic-modified
polyester system that is ideal for tunnel, offshore, mass
transit and other confined space applications. ELS exhibits low
ignitability, low smoke generation and extremely low smoke
toxicity. Color: light gray. Flame Spread: ASTM E84 rating
of 25, a smoke density index of 100 and Fuel Contribution of
0. Certifications: DNV Type Approval No. F-16856.
• Super Vi-Corr ® - This family of resin systems consists
of more than 30 custom formulas engineered to provide
corrosion control solutions in applications that are too severe
for conventional FRP and other building materials. Each
Super Vi-Corr resin was engineered for the best possible
performance in specific chemical and/or elevated temperature
environments. These systems exist for aggressive chemical
service in reagents like solvents, acidic oxidizers, chlorine
dioxide, sodium hypochlorite and liquid desiccants. Certain
formulas are also suited for elevated temperature applications
up to 400° F. Super Vi-Corr gratings are typically used
for packing hold-downs and support in environmental and
process scrubber applications. Color: natural - tan to beige.
Flame Spread: non fire retardant, unless specified.
Chemgrate ® Resins
• FS-25 - This food-grade polyester resin system is
designed for applications where there is moderate exposure
to corrosive elements. Color: light gray, yellow and
green. Flame Spread: ASTM E84 rating of 25 or less.
Certifications: USDA accepted.
• FGI-AM* - This improved food-grade isophthalic polyester
resin system offers antimicrobial properties to inhibit the
growth of mold on the surface of the composite to protect the
product itself along with the necessary corrosion resistance
to meet the requirements of the food and beverage industry.
Color: light gray. Flame Spread: ASTM E84 rating of 25 or
less. Certifications: USDA accepted.
• CP-84 - A chemical-grade premium polyester resin, CP-
84 offers excellent corrosion resistance in highly acidic
conditions. Color: green. Flame Spread: non fire retardant.
Certifications: USDA accepted.
• VE-25 - A premium vinyl ester resin system formulated
to resist highly corrosive acids and caustics found in
the harshest chemical environments. It is an economical
alternative to exotic materials often specified for highly
corrosive conditions. Color: orange or dark gray. Flame
spread: ASTM E84 rating of 25 or less. VE-25 will maintain
structural integrity at elevated temperatures of up to 180ºF.
* This product is intended only for non-public health uses.
Phone: 800-527-4043
www.fibergrate.com

Molded Grating Surfaces
Slip-resistant Surfaces
Slips and falls are the second leading cause of industrial accidents. According to the National Safety Council, each
injury related lost work day can cost $50,000 to $100,000. That is why Fibergrate developed three slip-resistant surfaces
for flooring and stair solutions. These surfaces include meniscus and applied grit tops in the Fibergrate resins and
integral grit in the Chemgrate resins.
Meniscus Top
The concave surface of Fibergrate's
standard meniscus top provides
superior slip-resistant footing in most
environments including wet or oily
conditions.
Applied Grit Top
Fibergrate's optional grit top grating
has a quartz grit which is secondarily
applied, cured and sealed onto the
surface providing excellent slipresistant
footing.
Integral Grit Top
Chemgrate's standard slip-resistant
surface is a fully sealed integral quartz
grit surface applied during the molding
operation.
Available Surfaces For Molded Grating
S = Standard O = Optional N/A= Not Available
STANDARD RESIN SYSTEMS
Surface CP-84 Corvex ® ELS FGI-AM ® FS-25 IFR VE-25 Vi-Corr ® Super
Vi-Corr ®
Meniscus N/A S S S O S O S S S
Applied Grit O O O O O O O O O O
Integral Grit S N/A N/A N/A S N/A S N/A N/A N/A
FRP Conductive Surface
Fibergrate can provide a secondarily applied conductive surface which drains off the buildup
of unwanted, dangerous static electricity when properly grounded. This specialized surface
produces an electrical resistance of less than 26 kilo-ohms per foot, while the grating retains
all of the other desirable corrosion-resistant, fire-retardant, impact-resistant and lightweight
characteristics of conventional fiberglass reinforced plastic (FRP) grating.
Fibergrate HF Molded Grating
Fibergrate has combined a premium-grade vinyl ester resin and exotic reinforcements to manufacture the only molded
grating system suitable for service in harsh hydrofluoric acid applications. HF Molded Grating, a non-fire retardant
system, can see service in applications that would cause premature failure in most traditional molded grating systems.
XFR
Phone: 800-527-4043
www.fibergrate.com

Load Tables - Fibergrate ® Molded Gratings
Alternate thickness Fibergrate grating uniform load tables (3/4x1x4, 3/4x1-1/2x1-1/2, 1-1/4x1-1/2x1-1/2)
can be found on our website - www.fibergrate.com - under Products, Molded Grating.
Molded Grating Uniform Load Tables - Deflections in Inches Max Recom. LOAD (psf) Ultimate
Clear Style Load (psf) Resin System Capacity
Span Depth Mesh Corvex ® IFR Vi-Corr ® (psf)
Super Vi-Corr ®
(in) (in) (in x in) 50 65 100 150 200 300 500 1000 2000 ELS FGI XFR
1 3/4x3/4

Load Tables - Fibergrate ® Molded Gratings
Alternate thickness Fibergrate grating concentrated point load tables (1-1/4x1-1/2x1-1/2)
can be found on our website - www.fibergrate.com - under Products, Molded Grating.
Molded Grating concentrated Point Load Tables - Deflections in Inches
Clear Style Load (lb)
Span Depth Mesh
(in) (in) (in x in) 50 100 200 300 500 1000 2000
1 1 x 4

Load Tables - Fibergrate ® Molded Gratings
Alternate thickness Fibergrate grating uniform load tables (3/4x1x4, 3/4x1-1/2x1-1/2, 1-1/4x1-1/2x1-1/2)
can be found on our website - www.fibergrate.com - under Products, Molded Grating.
Molded Grating concentrated line Load Tables - Deflections in Inches Max Recommended LOAD (lbs/ft) Ultimate
Capacity
Clear Style Load (lb/ft of width) Resin System
Span Depth Mesh Corvex ® IFR Vi-Corr ® (lbs/ft)
Super Vi-Corr ®
(in) (in) (in x in) 50 100 200 300 500 1000 2000 ELS FGI XFR
1 3/4x3/4

Load Tables - Chemgrate ® Molded Gratings
MOLDED Grating UNIFORM Load Tables - Deflections in Inches
MaxIMUM Ultimate
Clear Style Load (psf) Recommended Capacity
Span Depth Mesh
LOAD
(in) (in) (in x in) 50 65 100 150 200 300 500 1000 (psf)
(psf)
5/8
1
1x4
2x2
0.01

Load Tables - Chemgrate ® Molded Gratings
Molded Grating concentrated Point Load Tables - Deflections in Inches
Clear Style Load (lb)
Span Depth Mesh
(in) (in) (in x in) 50 100 200 300 500 1000 2000
5/8 1 x 4 0.01 0.02 0.04 0.06 0.10 0.20 0.41
1 2 x 2

Load Tables - Chemgrate ® Molded Gratings
Molded Grating concentrated line Load Tables - Deflections in Inches
Max Ultimate
Clear Style Load (lb/ft of width) Recommended Capacity
Span Depth Mesh
LOAD
(lb/ft)
(lb/ft)
(in) (in) (in x in)
12
18
24
30
36
42
48
5/8
1
1
1
1-1/2
1-1/2
5/8
1
1
1
1-1/2
1-1/2
5/8
1
1
1
1-1/2
1-1/2
2
5/8
1
1
1
1-1/2
1-1/2
2
5/8
1
1
1
1-1/2
1-1/2
2
1
1
1
1-1/2
1-1/2
2
1
1
1-1/2
1-1/2
2
1 x 4
2 x 2
1 x 4 std.
1 x 4 H.D.
1-1/2 x 6
1-1/2 x 1-1/2
1 x 4
2 x 2
1 x 4 std.
1 x 4 H.D.
1-1/2 x 6
1-1/2 x 1-1/2
1 x 4
2 x 2
1 x 4 std.
1 x 4 H.D.
1-1/2 x 6
1-1/2 x 1-1/2
2 x 2
1 x 4
2 x 2
1 x 4 std.
1 x 4 H.D.
1-1/2 x 6
1-1/2 x 1-1/2
2 x 2
1 x 4
2 x 2
1 x 4 std.
1 x 4 H.D.
1-1/2 x 6
1-1/2 x 1-1/2
2 x 2
2 x 2
1 x 4 std.
1 x 4 H.D.
1-1/2 x 6
1-1/2 x 1-1/2
2 x 2
1 x 4 std.
1 x 4 H.D.
1-1/2 x 6
1-1/2 x 1-1/2
2 x 2
50
0.02
0.02

High Load Capacity Grating
Molded High Load Capacity (HLC) grating is yet another
product in the arsenal of engineered fiberglass
reinforced plastic (FRP) solutions by Fibergrate. While
capitalizing on most of the traditional benefits of
molded grating products - high strength, corrosion
resistance, fire retardancy, nonconductivity and low
maintenance - this specially manufactured molded
FRP product has been engineered to carry the
forklift loads that traditional molded FRP grating
products are unable to support.
With a 48% open surface area, Fibergrate’s molded HLC grating is available in a 6’ x 4’ panel
with depths of 1-1/2” and 2" and comes standard in a fire-retardant vinyl ester resin system, dark gray in
color, with a smooth surface. Fibergrate’s molded HLC grating merits an ASTM E-84 flame spread rating
of 25 or less and a Class 1 Fire Rating.
Allowable Spans for Vehicular Loads
Notes:
1. Load is carried by the grating load bars immediate under wheel + four additional load bars adjacent to wheel.
2. Allowable Span is based on a 0.25" maximum deflection and a Factor of Safety of 3.0. The other criteria may be required by certain construction codes. Check code requirements to determine
design criteria.
3. ALLOWABLE SPAN IS STRONGLY DEPENDENT ON WHEEL WIDTH AND VEHICLE WEIGHT/LOAD CAPACITY. If your application varies from the values given on this table, contact Fibergrate
Engineering for application assistance.
4. Load based on the AASHTO Standard Truck Load as defined in AASHTO LRFD Bridge Design Specifications, 2nd Ed. This does not imply that the allowable span meets the deflection requirements
of this specification.
15
Phone: 800-527-4043
www.fibergrate.com

HLC Grating Details
1-1/2” Molded HLC Grating
2” Molded HLC Grating
1.0 0.33
1.0 0.39
Load Bars
2.0
1.0
0.43
1.5
Load Bars
2.0
Plan View
Plan View
1.0
0.48
2.0
Elevation
1 1/2” Deep x 1” x 2” Rectangular Mesh
# of Bars/Foot of Width = 12
Load Bar Width = 0.43” Load Bar Centers = 1”
Open Area = 48% Approx. Weight = 6.2 psf
Panel Size 6’ x 4’ (span)
Engineering Properties Per Ft of Width
A= 7.45 in 2 I = 1.39 in 4 S = 1.80 in 3
Average EI = 2,400,000 lb - in 2
Elevation
2” Deep x 1” x 2” Rectangular Mesh
# of Bars/Foot of Width = 12
Load Bar Width = 0.48” Load Bar Centers = 1”
Open Area = 48% Approx. Weight = 8.4 psf
Panel Size 6’ x 4’ (span)
Engineering Properties Per Ft of Width
A= 10.26 in 2 I = 3.40 in 4 S = 3.27 in 3
Average EI = 6,000,000 lb - in 2
6’ x4’ Finished Panel Size
Note:
Load carrying bars are oriented across the narrow (4’) dimension of the panel. Panels
furnished with closed bars all sides.
Phone: 800-527-4043 16
www.fibergrate.com
Microelectronics Facility

Load Tables - HLC Grating
Molded High Load Capacity Grating
Load/Deflection Information-
Uniform Load Table - Deflection in Inches
UNIFORM LOAD (psf)
MAXIMUM
STYLE
RECOMMENDED ULTIMATE
SPAN DEPTH MESH
LOAD CAPACITY
(in) (in) (in x in) 100 200 300 400 500 600 700 800 900 1000 (psf) (psf)
12
1-1/2 1 x 2

Micro-Mesh ® Access Flooring
Micro-Mesh panels are the right choice to minimize vibration
from rolling cart or wheelchair traffic. The ADA compliant 1/2"
open area between bearing bars also prevents small tools and
other objects from falling through the grating to the surface
below. The “15 mm ball test” requirement, common in Europe
and in offshore applications, is easily met by Micro-Mesh
panels.
Micro-Mesh ® fiberglass reinforced plastic (FRP) access
flooring system is designed as a low cost alternative to
aluminum, steel, stainless steel and other materials in
applications where corrosion resistant under-floor access
and unobstructed air flow is required. Lightweight, 2' x 2'
Micro-Mesh panels are easily removed, providing ready
access to electrical conduits, air supply plenums and service
lines.
Details
#of Bars/Ft of Width
16
Load Bar Width
1/4"
Bottom Load Bar Centers
1-1/2"
Top Load Bar Centers
3/4"
Open Area
44.4%
Approx.Weight
4.5 psf
Adjustable quad-head grating pedestals allow for a fast, smooth
installation and readily adjust to sub-floor contour to provide a level flooring surface. Micro-Mesh panels come
standard with a smooth top and are also available with meniscus and applied grit tops.
Fibergrate is now offering the 1-1/2" deep Micro-Mesh with 3/4" square top mesh in a 4' x 12' panel. In addition,
the following new Micro-Mesh panels are also available: 1" deep with 3/4" square top mesh (4' x 12') and 1-1/8"
deep with 1" square top mesh (1M x 3M) - see pages 4 and 5 for product details. Load table information for all
new panels can be found on pages 9 and 11.
Load and Deflection Data
Load capacity and deflection data was developed using the
Recommended Test Procedures for Access Floors by the
Ceilings & Interior Systems Construction Association (CISCA).
Setup requires that panels “...shall be supported on an understructure
support identical to that utilized in an installed system”.
ALL LOAD POINTS 1”
CASE VI
(Pedestal)
CASE V
(Weakest point)
CASE I & CASE III
(Centroid)
CASE II & CASE IV
(Midpoint edge)
Grating Leg
Supports
(4 Corners)
CONDITIONS:
CASE I. Concentrated loading at the center of the panel (centroid)
CASE II. Concentrated loading at the mid point of the edge (centerline edge)
CASE III. Ultimate Capacity - Concentrated loading at the center of the panel
(centroid)
CASE IV. Ultimate Capacity - Concentrated loading at the midpoint of the
edge (centerline edge)
CASE V. Ultimate Capacity - Concentrated loading at the "weakest point" of
the panel
CASE VI. Ultimate Capacity - Pedestal
LOADS TO PRODUCE
0.08" DEFLECTION
CASE I
580 lb
CASE II
250 lb
ULTIMATE CAPACITIES
CASE III 4,700 lb
CASE IV 1,200 lb
CASE V 1,700 lb
CASE VI 6,000 lb
PANEL DEFLECTIONS
LOAD CASE I CASE II
(lb) (in) (in)
100 0.006 0.032
200 0.020 0.064
300 0.037 0.096
400 0.054 0.129
500 0.069 0.161
750 0.116 0.240
1000 0.158 0.331
For more information on Fibergrate's grating pedestal system, see page 26 or visit www.fibergrate.com for full brochure
including layouts.
18
Phone: 800-527-4043
www.fibergrate.com

New Products
Non-Magnetic Access Flooring
New cable routing requirements implemented by some MRI vendors prohibit
the use of metal access floor panels found in MRI magnet rooms. To meet
the needs of this new requirement, Fibergrate developed a non-magnetic
flooring system by customizing our standard Micro-Mesh panels and pedestal
systems. A high pressure floor laminate is now adhered to the surface of the
grating panel and non-magnetic pedestals are available. Fibergrate non-magnetic access flooring system should
be the first choice for use in this market. For detailed literature and specification sheet, please visit the Fibergrate
website - www.fibergrate.com - search Products, Non-Magnetic MRI Flooring System.
EcoGrate Molded Grating
Fibergrate's Ecograte grating was developed for use in marine environments.
This product exceeds the guidelines set forth by the Army Corp of Engineers
who require a minimum of 43% open area, to protect seagrasses found below
docks. Ecograte offers a 46% open area, is 3/4" deep with 1" by 4" rectangular
mesh. In addition, this product meets the American with Disabilities Act
(ADA) guidelines and its Aquagrit surface provides a barefoot-friendly, slip resistant surface to ensure a safe
deck area. Ecograte can be used in various applications throughout the recreational market, such as amusement
parks and waterways. For grating details, see page 4. More information is also available on our website
- www.fibergrate.com - search Products, Molded Grating, Ecograte.
Uniform Load Table - Deflection in Inches
SPAN
(in)
UNIFORM LOAD (psf)
50 65 100 150 200 300 500 1000 2000
Maximum
Recommended
Load
(psf)
Ultimate
Capacity
(psf)
12

AirMesh ® and Multigrid ® Grating
AirMesh ® Screening
Originally designed to meet United States Navy specifications (ELS resin
system) for air intake screens on ships, AirMesh ® molded FRP screening is
now available for use in marine, commercial and general industrial applications.
AirMesh is 1/2" deep, 1-1/2" square mesh screening with 1/8" thick bars available
in 4' x 8' panels. To meet a wide range of requirements, AirMesh is available in
all standard Fibergrate® molded resin systems. This advanced screen features
Details (Non-load carrying)
an 87% open area, allowing a
1/2" x 1-1/2" generous airflow and a standard
Square Mesh
smooth surface for worker safety.
#of Bars/Ft of Width
8
Load Bar Open Area
Width 87%
1/8"
Load Bar
Approx.
Centers
Weight
1-1/2" 0.8 psf
This open area also contributes to the light weight of AirMesh,
making it easier to install. Corrosion resistant, anti-magnetic and
nonconductive, AirMesh provides long, reliable life, even in the
most demanding conditions.
Multigrid ® Grating
Multigrid ® is a 1/2" deep multipurpose lightweight FRP grating originally designed to be used as safety
screening. Multigrid is available in 4' x 12' and 4' x 15' panels. With its
3/16" bars which are slightly thicker than AirMesh, Multigrid can also
be used as a slip-resitant surface on floors and a protective walkway
when installed on top of trickling filter media in wastewater applications.
The 2" x 2" mesh size ensures continuous application of wastewater and
suspended solids without plugging.
Details (Must be fully supported)
1/2" x 2"
Square Mesh
#of Bars/Ft of Width
6
Load Bar Open Area
Width 82%
3/16"
Load Bar
Approx.
Centers
Weight
2" 0.96 psf
This product can also be used for a wide range of industrial,
commercial and institutional applications including
machinery guards, fencing, space dividers in factories and
warehouses and cages for tools, equipment and animals.
Safety barriers or cages are another common use where
di-electric or corrosive conditions require protection for
working personnel.
Phone: 800-527-4043 20
www.fibergrate.com

Floor Plate
Floor Plate
Chemplate and Fiberplate are manufactured by building
up multiple layers of fiberglass reinforcement and speciallyformulated
resins. The result of this process is a solid composite
panel offering both bidirectional strength and corrosion resistance.
These specially designed products are nonporous and are easily cleaned by
high pressure washer and can withstand cleaning solutions. Available in all
molded grating resin systems (see page 7). Standard panel sizes are 3' x 10',
4' x 8', 4' x 12' and 5' x 10'. (Custom sizes available.)
Chemplate ® and Fiberplate ® Load and Deflection Data
*Important: 1/8" Plate designed for use as covering only; not recommended for load bearing service.
Depth (in)
1/4
3/8
1/2
3/4
Span
(in)
Concentrated Load-Full Panel Uniform Load-Full Panel
Concentrated Load
Required to Produce
Deflection Equal to
1% of Span (lb)
Maximum Load
Load (lb)
Maximum Load
Load (psf)
Norm 1 Firm 2 100 250 500 750 1000 Norm 1 Firm 2 25 50 75 100 150
12 229 135 .047 .104 .199 .294 .392 336 208 .010 .014 .022 .029 .043 300 lb
18 196 117 .079 .1.81 .351 -- -- 99 54 .056 .085 .115 .145 .204 256 lb
24 181 116 .102 .268 -- -- -- 28 15 .177 .327 .476 -- -- 223 lb
364 84 55 .350 -- -- -- -- -- -- -- -- -- -- -- 103 lb
12 515 325 .018 .045 .093 .140 .190 480 300

Covered Grating
Covered grating is often used in loading and storage
areas. Other applications include food processing
facilities where covered grating walkways prohibit
contamination to conveyor or work surfaces below;
facilities where covered grating provides a walking
surface and controls subsurface odors; walkways
over tank tops and vats and solid flooring where
narrow heels might present a tripping hazard with
open mesh grating. Both Chemdeck and Fibergrate
covered grating include a fiberglass gritted plate cover
secondarily affixed to a molded grating panel. Covered grating offers a strong, level surface for foot or cart
traffic and provides approximately 50% higher stiffness values than that of open mesh grating. Its standard
grit-top cover assures secure footing.
Chemdeck ® and Fibergrate ® Covered Grating
Chemdeck ® comes in standard panel sizes with either a 1/8" or
1/4" deep plate applied to standard depths of grating. Chemdeck is
available in all four Chemgrate resin systems — FS-25, FGI-AM,
CP-84 and VE-25 — offering a variety of colors (dependant on resin
selection - see page 6) that complement most walking surfaces.
Fibergrate ® covered grating consists of a 1/8" or 1/4" deep plate
applied to standard Fibergrate grating depths. Fibergrate covered grating is available in Corvex ® , IFR,
Vi-Corr ® , ELS and XFR resin systems.
Note: Type WLP Hold Down Clips are recommended to secure
Chemdeck and Fibergrate covered grating panels to structural
supports in order to eliminate potential damage to the covered
grating. Fibergrate provides 8 WLP Hold Down clips per panel.
22
Phone: 800-527-4043
www.fibergrate.com

Work Platform Solutions
Work station platforms from Fibergrate are
available in a variety of styles, heights and
sizes to provide a slip- and corrosion-resistant
and ergonomic solution for your facility.
From portable one-piece workstands to fixed
large-scale access platforms, Fibergrate will
help you find the perfect fit for your working
environment.
Safe-T-Stand ®
Safe-T-Stand
platforms have
a grit top which
provides a safe,
slip-resistant
surface, while their resilient design
eases the strain on feet, legs and back muscles.
Stands are available in 2", 4", 6", 8" and 10" heights
and have skid-resistant rubber feet for added safety.
The proven strength, impact resistance and
overall durability of FRP construction make
Safe-T-Stand platforms equally usable in any
process industry or manufacturing environment.
Standard Safe-T-Stand platforms are manufactured
using a specially-designed, USDA-accepted, foodgrade
resin for food and beverage processing plants.
The full line of Fibergrate resin systems is available
for non-food applications.
grating needed for drainage or waterflow and safe,
ergonomic platforms. The feet raise the grating 1/2"
above the ground and along with the open mesh,
protect workers by allowing chips and fluids to fall
below the standing surface eliminating slip and fall
hazards.
Fibergrate ® Custom Platform Solutions
Fibergrate's turnkey approach to providing
custom platform solutions include design and
fabrication and installation services. From simple
portable workstations to complex multifaceted
platforms, the experienced personnel at Fibergrate
can provide your facility with the perfect custom
platform solution.
Fibergrate ® Workmats
Specially designed
rubber feet are an
economical way to
create a raised, ergonomic
grating workmat for use
around machines, lathes and in
wet areas. With the rubber feet,
facilities have a cost-effective solution to elevate
Phone: 800-527-4043 23
www.fibergrate.com

Stair Solutions - Stair Treads
Fibergrate provides several slip- and corrosion-resistant products for your
stairway safety needs. Our complete stair solution line includes panels in a onepiece
molded configuration for new or replacement step; covered stair treads to
replace deteriorating concrete steps; or stair tread covers designed to add slip
and corrosion resistance to existing metal, concrete or woods steps. Stair treads
are available in a one-piece molded configuration engineered to exceed OSHA
and other model building code standards
for safety, strength, durability and corrosion
resistance.
Fibertred ® Panels
Fibertred stair treads are available
in the same high-performance resin
formulations as Fibergrate grating. Unique
cutting channels spaced at 6" intervals
provide efficient utilization when custom
fitting treads into stairways. These
channels also ensure that all standard stair
tread widths are terminated with closed ends. Up to five 24" wide stair
treads can be cut from each side of a single panel. A 1-1/2" wide gritted
strip is molded in on both sides of the panel for superior slip resistance.
1-1/2" x 6"
Fibergrate ® Covered Stair Treads
Designed as an alternative to the high-maintenance concrete or
slippery metal step, covered stair treads are designed for commercial
and architectural applications where aesthetics and low maintenance are
important considerations. Covered stair treads are available in FS-25 resin
and has an integral grit top which comes in three slip-resistant textures —
coarse, medium and fine which is suitable even for barefoot traffic. They
can withstand many corrosive environments including salt, continuous
moisture and constant cleaning.
The lightweight tread weighs
less than 20 percent that of a
precast concrete step and can be
easily fabricated and installed
with simple wood working tools.
24"
10-1/2"
24
22-1/4"
(depth) 1-1/2"
Phone: 800-527-4043
www.fibergrate.com

Stair Solutions - Stair Treads
Approximate Weight 103 lb
Normally for 42-1/2", 48-1/2",
54-1/2" & 60-1/2" tread sizes
21-1/2"
27-3/8"
10'-1/2"
Chemtred ® Panels
Chemtred is an open grating type
stair tread with tapered bars that allow
self-cleaning. Chemtred is molded with an
integral solid contrasting nosing and integral
slip-resistant grit top. There are two specially
designed panel sizes and bars are on 1-1/2"
and 6" centers. Panels are available in all
Chemgrate resins.
Load Table - Stair Treads
9-3/8"
12-3/8"
10-7/8"
12-3/8"
13-7/8"
(Depth 1-1/2")
Approximate Weight 103 lb
Normally for 42-1/2", 48-1/2", 54-
1/2" & 60-1/2" tread sizes
Tread Type Mesh Load Span (in) 18 24 30 36 42 48
Tread (Depth x Width) Type (lb) Span/150 0.12 0.16 0.20 0.24 0.28 0.32
12'-1/2"
9-3/8"
(Depth 1-1/2")
7-7/8"
9-3/8"
10-7/8"
Fibertred 1-1/2" x 6" Rectangular 250 0.03 0.05 0.09 0.16 0.25 0.41
500 0.06 0.10 0.19 0.32 0.50 —
Chemtred 1-1/2" x 6" Rectangular 250 0.03 0.05 0.09 0.14 0.25 0.41
Notes:
1. It is suggested that stair tread deflections be limited to Span/150. Deflections based on this ratio are at the top of the table.
2. Deflections in the body of the table are for concentrated loads of both 250 and 500 lb A concentrated load is applied at the centerline of the
tread, over a width of 4" and a depth of 6", starting at the nosing edge to simulate the landing of a foot.
3. Stair treads with square mesh or for longer spans are available by custom order. Please contact Fibergrate for more information.
Load Table - Covered Stair Treads
Tread Type Load Span (in) 30 36 42 48 54 60
(Depth x Width) (lb) L/D=150 0.2 0.24 0.28 0.32 0.36 0.4
1-5/8" x 10-5/8" 250 0.08 0.15 0.23 0.35 — —
500 0.17 0.29 0.47 — — —
1-5/8" x 12-1/4" 250 0.07 0.11 0.18 0.27 0.37 —
500 0.13 0.23 0.36 — — —
2-1/8" x 10-1/4" 250 0.04 0.06 0.09 0.14 0.20 0.27
500 0.07 0.13 0.19 0.28 0.39 —
2-1/8" x 12-1/4" 250 0.03 0.05 0.08 0.12 0.17 0.23
500 0.05 0.10 0.17 0.24 0.33 0.46
Grating tolerances ± 1/8"
Phone: 800-527-4043 25
www.fibergrate.com

Stair Solutions - Stair Tread Covers
Fiberplate ® stair
tread covers are a
convenient way to
provide solid
slip-resistant footing for
existing stairs. Stair
tread covers may be installed over wood, concrete or metal steps.
Standard color is dark gray with a highly visible safety yellow
nosing and light gray for architectural applications.
An integral aluminum oxide grit-top surface provides secure
footing for maximum safety and a highly durable tread.
Reinforced with a woven glass mat for durability and impact
resistance, these tread covers come in 8", 9" 10", 11" and 12" depths. The standard thickness is 1/8" with
1/4" thick covers available for heavy duty applications. Standard 12' panels are easily cut to size during
installation, or are available precut to custom lengths.
Phosphorescent Nosing
Fiberplate stair tread covers can be ordered with a special
phosphorescent coating for the nosing area, causing it to glow
even after the primary light source has been removed. The
special nosing is perfect in stairways which serve as emergency
exits during power outages, outdoor accessways where lighting
is periodically dimmed as in arenas and concert halls or as a
safety measure for nighttime operation in outdoor applications
such as on passenger ships. This special nosing has been
tested in accordance with ISO/TC 8/SC 1 N. Ships and Marine
Technology — Low Location Lighting on Passenger Ships.
Installation Details
1-1/2"
Depth
Low Profile
Head Fastener
Field Drill Holes
(Seal All Holes)
Contrasting
Nosing
Add Fastener in
Rear if Required
Wood or Concrete
Stair Tread
26
1/4" x 2" Truss
Head Bolt 316SS
Field Drill Holes
(Seal All Holes)
Contrasting Nosing
Retaining Clip 316SS
1/4" Lockwasher 316SS
1/4" Nut 316SS
Add Fastener in Rear if Required
Steel or FRP
Stair Tread
Phone: 800-527-4043
www.fibergrate.com

Accessories
Clip Assemblies For Molded Products
Fibergrate offers specially designed attachments and clips, both to fasten panels together and to secure
them to support structures. All types are made of Type 316 Stainless Steel and are available in 1", 1-1/2"
and 2" sizes. Install clips a maximum of every 48" and use at least four clips per piece of grating (at least
eight clips per 4' x 12' panel).
TYPE M HOLD DOWN
CLIPS: secure panels to
a support in the same
manner as Type J Clips,
but designed to use two
adjacent grating bars for
a more secure fit. Similar
in design to metal
grating saddle clips.
TYPE WLP
STRUCTURAL
CLIPS: secure
covered grating or
plate to a structure.
(Also available in
304 SS)
TYPE J HOLD
DOWN CLIPS:
secure grating
panels to support
frames.
TYPE H
(TRUSS HEAD)
STRUCTURAL
CLIPS: secure
plate to a
structure.
TYPE F END PANEL
CLIPS: provide a
simplified method for
joining factory edges
of adjacent abutting
panels. (Not for use
with Chemgrate resins.)
TYPE G HOLD
DOWN CLIPS:
attach grating
to any structural
member flange,
3/4" or smaller in
thickness, with no
drilling required.
Field cutting
of one bar required
TYPE EI HOLD
DOWN CLIP:
secure panels
to a support.
EZ Angle® Embedment Angle
EZ Angle® embedment angle is precision-designed for
solid seating of 1", 1-1/2", and 2" deep gratings. EZ Angle
embedment angle is stocked in 20' lengths for immediate
shipment. For animated installation instructions, visit our
resource center at www.fibergrate.com.
Sealing and Bonding Kits
To maintain corrosion resistance and structural integrity, Fibergrate
offers standard resin sealing in 1/2 pint and gallon kits for
protecting the exposed ends of cut panels and other components.
One 1/2 pint kit coats approximately 20-40 lineal feet. Sealing and
bonding kits come in a natural, unpigmented color.
Phone: 800-527-4043 27
www.fibergrate.com

Grating Pedestals
Made with the same adherence to quality as all Fibergrate products,
specially designed pedestals for square mesh molded grating are
manufactured to provide safe support for elevated flooring. Pedestal
supported floors are versatile; they can be modified or moved from place to
place as necessary and pedestals are generally much less expensive than
beam support systems. Adjustable pedestals are available in heights from
3-1/4" to 72" (with additional bracing). Pedestals are available with 1-1/2" or
2" single heads or quad heads to fit Fibergrate
or Chemgrate grating (diagrams show single head).
Mini Pedestal Elevation Standard Pedestal Elevation Extended Pedestal Elevation
Pedestal
Configuration
Mini
Standard
Extended
‘A’ Range
Head
Total
Single Head
Quad Head
Adjustment
Min. Max. 1-1/2” 2” Fibergrate ® Chemgrate ®
3-1/4” 4-3/4” 1-1/2” 561103 562103 563103 564103
4” 5-1/2” 1-1/2” 561104 562104 563104 564104
4-3/4” 6-1/4” 1-1/2” 561105 562105 563105 564105
5” 7-3/4” 2-3/4” 561205 562205 563205 564205
6-3/4” 9-1/2” 2-3/4” 561207 562207 563207 564207
8-3/4” 11-1/2” 2-3/4” 561209 562209 563209 564209
9-1/2” 14” 4-1/2” 561310 562310 563310 564310
12” 18” 6” 561312 562312 563312 564312
15” 21” 6” 561315 562315 563315 564315
18” 24” 6” 561318 562318 563318 564318
21” 27” 6” 561321 562321 563321 564321
24” 30” 6” 561324 562324 563324 564324
27” 33” 6” 561327 562327 563327 564327
30" 36" 6" 561330 562330 563330 564330
33" 39" 6" 561333 562333 563333 564333
36” 42” 6” 561336 562336 563336 564336
Notes: Available to 72” - contact Fibergrate for more information on extended lengths and bracing. For a more detailed
brochure on pedestals, go to www.fibergrate.com or contact Fibergrate.
28 Phone: 800-527-4043
www.fibergrate.com

Engineering Notes
The strength and corrosion resistance of FRP
grating are related to the glass content, resin
content, resin type and method of construction.
Fibergrate molded products provide an outstanding
balance of corrosion resistance, slip resistance and
strength.
There are three frequently used methods of
support for molded fiberglass grating:
1) two continuous edge supports with bearing
bars perpendicular to the supports;
2) continuous support around all sides; and
3) four-corner support, or point support. (For
example, pedestals are provided to support the
grating a few inches above the existing floor
when large volumes of liquids are flowing
onto the floor and where a slip-resistant
drainable floor surface is required because of
operating requirements.)
Panels are normally supported around the perimeter
to assure panel-to-panel alignment.
In using Fibergrate’s grating, the principles are
similar to metal grating usage, but you must keep
in mind that the flexural modulus of elasticity of
reinforced fiberglass bars is lower than that of steel.
As a result, the allowable deflection is often the
limiting consideration.
Engineering Notes
Optimum floor installation costs are achieved
by minimizing the combined cost of the support
structure and grating. As the span is decreased, load
capacity requirements of the grating are reduced.
Estimating two or three span options will establish
the optimum system.
Mesh Selection: The following notes can
be helpful in selecting the optimum mesh
configuration.
(1) Grating with heavier bars should be selected
for floors subjected to more abusive services.
In these type applications the 3/8" wide
bearing bars and 5/8" crossbars of the 1"
(1" x 4") Heavy Duty and the 1-1/2"
(1-1/2" x 6") would be more suitable than
the 1/4" wide bars on other mesh sizes.
(2) Rectangular mesh pattern grating provides the
highest load-carrying capacity based upon
cost per square foot.
(3) Square pattern mesh configurations have
nearly equal strength in both directions. Spans
larger than four feet, multiple floor cutouts,
high load/four-sided support layouts or
pedestal supported floors are conditions
frequently well-served by square mesh
configurations. High utilization per standard
panel and bidirectional aesthetics are
beneficial features of square mesh patterns.
Simple Beam Support: All data in our tables are
based on simple beam support. Load and deflection
for other types of beams, i.e., cantilever, fixed end
support, continuous support, etc. can be estimated
by using standard beam formulas.
Load vs. Deflection: Load vs. Deflection is
approximately proportional for a given span (i.e. if a
concentrated 400 lb load deflects a 30" span 1/4", an
800 lb load would deflect the same span 1/2").
Other Spans: Consult Fibergrate's Engineering
Department.
Phone: 800-527-4043 29
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Load Information/Grating Selection
Load/Deflection Tables Information
Fibergrate load and deflection tables are designed to be user friendly by separating uniform load information
from concentrated load information and concentrated point load data. These layouts allow designers to quickly
and accurately denote the grating best suited for the intended purpose. Fibergrate employs state-of-the-art
Acoustic Emission Testing. Fibergrate's load tables provide a maximum load below which corrosion resistance
damage does not occur.
Acoustic Emission
Acoustic Emission testing has long been an accepted industry practice for the non-destructive proof testing of
fiber-reinforced tanks, pipes, pressure vessels and utility truck booms. Acoustic Emission detects the earliest
evidence of failure in an FRP composite under load by detecting the inaudible sounds which occur as a result of:
1) cracking of the resin matrix, 2) delamination between the composite plies, 3) fracture of the reinforcing fiber,
or 4) interface failure between the matrix and reinforcement. Such failures represent the earliest opportunity for
intrusion of the corrosion elements. By utilizing Acoustic Emission technology, Fibergrate is able to establish
the Maximum Recommended Load rating for each grating product at which maximum corrosion resistance will
be offered.
Ultimate Capacity
Fibergrate has tested its molded grating product line to its ultimate capacity. ULTIMATE CAPACITY represents
a complete and total failure of the grating and is presented to illustrate the reserve strength of the grating at a
given span. Because there is some variation in ultimate load capacity from resin to resin, Fibergrate has chosen
to list the lowest or most conservative ultimate capacity value. Ultimate capacities are not to be used for design:
functionality of the grating is limited to Maximum Recommended Load.
Manufacturing Control Limits
The load/deflection values given in this brochure are average values developed through Fibergrate's Quality
Assurance Program. The manufacturing control limit on stiffness for all panels is plus or minus 7.5% of these
average values. This represents the tightest control on performance variation in the industry based on
published data.
1" Rectangular 1", 1-1/2" & 2"
MOLDED GRATING PULTRUDED Safe-T-Span
Application Needs
Mesh Square Mesh
® MOLTRUDED Rigidex ® II ®
1" Rectangular 1", 1-1/2" & 2" GRATING
Corrosion Resistance HR HR R R
Mesh
MOLDED PULTRUDED MOLTRUDED ®
Square Mesh
RIGIDEX I ® RIGIDEX II ®
Strength/Stiffness (longest span) R R HR HR
Impact Resistance R HR A R
Open Area (for drainage, aeration, light penetration) HR HR A HR
Single Direction Span R A HR HR
Bidirectional Span N HR N N
Ease of Layout and Installation A HR A A
Lightweight in Comparison to Metals HR HR HR HR
Custom Panel Sizes Available A R R N
HR = Highly Recommended R = Recommended A = Acceptable N = Not Recommended
30
Phone: 800-527-4043
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Chemical Resistance Guide
Chemical Environment
%
Concentration
Temp
˚F
Phone: 800-527-4043 31
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Molded
Pultruded
Fibergrate ® Chemgrate ® Safe-T-Span ®
Vi-Corr ® Super Vi-Corr ® IFR/Rigidex II FGI Corvex ® XFR FS-25 CP-84 VE-25 VEFR ISOFR
Acetic Acid 50 MAX C C C C C I C C C C C
Acetone 100 75 S S I I T I I I S I N
Alcohols 100 120 C C I I I S I I C I I
Alum ALL MAX C C C C C C C C C C C
Aluminum Chloride ALL MAX C C C C C C C C C C C
Aluminum Fluoride 20 75 C C I I I I I I C I I
Ammonium Hydroxide 30 75 C C N N N N N I C I N
Ammonium Salts-Neutral ALL 120 C C C C S S I I S C S
Ammonium Salts-Aggressive ALL 75 S C I I T I I I S T N
Aromatic Solvents ALL 75 T T N N N N N N T N N
Barium Salts ALL MAX C C C C C C C C C C C
Benzene 100 140 I S I I N I I I I I N
Black Liquor (Pulp Mill) ALL MAX C C I I N I I I C I N
Bleach Liquor (Pulp Mill) ALL MAX C C I I N N I I C I N
Calcium Hydroxide 25 MAX C C S S I I S S C S I
Calcium Hypochlorite ALL MAX C C I I N I I I C I N
Calcium Salts ALL MAX C C C C C C C C C C C
Carbon Tetrachloride 100 75 C C I I N S N I C S N
Chlorinated Hydrocarbons 100 75 T T T T T N N N T T T
Chlorine Dioxide SAT 140 C C N N N N N T C S N
Chlorine Water SAT 120 C C I I T I I I C I N
Chlorine, Wet SAT MAX C C N N N N N N C N N
Chlorobenzene 100 75 S S N N N N N N S N N
Chlorobenzene ALL Up to 100 C C N N N N N N C N N
Chloroform 100 75 N N N N N N N N N N N
Chromic Acid 50 140 S S S S N N I S S I N
Citric Acid ALL MAX C C C C C C I C C C C
Copper Cyanide Plating ALL 125 C C S S I N S S C S I
Copper Salts ALL MAX C C C C C C C C C C C
Crude Oil (Sweet or Sour) ALL MAX C C C C C C C C C C C
Dichlorobenzene 100 75 T S N N N N N N T N N
Ethers 75 T T N N N N N N T N N
Ferric Chloride 100 MAX C C C C C C I C C C C
Ferric Salts ALL MAX C C C C C C C C C C C
Fluoride Salts+HCI ALL 75 C C S S N I S S C I N
Fluosilicic Acid 10 75 C C S S S S S S C S I
Formaldehyde 37 150 C C I I I I I I C S I
Formic Acid 25 100 C C S S I I I S C S I
Fuel (Diesel, Jet, Gasoline) ALL 100 C C C C C C C C C C C
Glycerine 100 MAX C C C C C C C C C C C
Green Liquor (Pulp Mill) ALL MAX C C N N N N N I C I N
Hydrobromic Acid 48 MAX S S S S I I I S S I N
Hydrochloric Acid 10 MAX C C S S S C S S C S S
Hydrochloric Acid 30 MAX C C S S I I S S C I I
Hydrochloric Acid (concentrated) ALL Up to 180 I C N N N N N N I N N
Hydrocyanic Acid ALL MAX C C I I I I I I C S I
Hydrofluoric Acid 20 75 S C N N N N N N S N N
Hydrogen Peroxide 30 75 C C N N N I N N C S N
Lactic Acid 100 MAX C C C C C C C C C C C
Lime Slurry SAT MAX C C C C C C C C C C C
Lithium Chloride SAT MAX N C N N N N N N N N N
Lithium Salts ALL MAX C C C C C C C C C T T
Magnesium Salts ALL MAX C C C C C C C C C C C
Maleic Acid 100 MAX C C S S I C I S C S I
Mercury Chloride 100 MAX C C C C C C S C C C C
Nickel Salts ALL MAX C C C C C C C C C C C
Nitric Acid 20 120 C C S S I I S S C I I
Nitric Acid 35 100 C C N N N I N I C I N
Nitric Acid 40 Ambient I C N N N N N N I N N
Nitric, Hydrofluoric 20:2 75 I C N N N N N N I N N
Nitrous Acid 10 75 C C C C C C I C C C C
Ozone for Sewage Treatment 100 C C C C C C C C C C C
Perchloroethylene 100 75 S C N N N I N N S I N
Phenol 10 75 C C N N N N N N C I N
Phenol 88 Ambient S C N N N N N N S N N
Phosphoric Acid 85 MAX C C C C S C I C C C S
Phosphoric Acid, Super 115 MAX C C I I T S N I C S N
Potassium Hydroxide 10 120 C C I I N N I I C S N
Potassium Salts ALL MAX C C C C C C C C C C C
Silver Nitrate 100 MAX C C C C C C I C C C C
Sodium Cyanide ALL 75 C C I I I I I I C S I
Sodium Hydroxide 50 MAX C C I I N N I I C I N
Sodium Hydroxide 10 MAX C C N N N N N N C N N
Sodium Hypochlorite (Stable) 10 100 C C S S I S S S C S I
Sodium Salts-Neutral ALL MAX C C C C C C C C C C C
Sodium Salts-Aggressive ALL 75 S C I I T I N I S T N
Sulfur Dioxide SAT MAX C C S S S S S S C S S
Sulfuric Acid 25 MAX C C S S I S S S C S I
Sulfuric Acid 50 MAX C C S S N S I S C S N
Sulfuric Acid 75 100 C C I I N I N I C I N
Toluene 100 120 S C I I N N I I S I N
Trichloroethane1,1,1 ALL 75 S C I I N I N I S I N
Trisodium Phosphate 50 MAX C C I I I I I I C I N
Water (Fresh, Salt, Moderate D.I.) 100 MAX C C C C C C C C C C C
Wet Chlorine/Hydrochloric Acid 10-20 Up to 350 S C N N N N N N S N N
White Liquor (Pulp Mill) ALL MAX C C I I N I I I C S N
Zinc Chloride Plating ALL 75 C C S S N S I S C S N
Zinc Salts 100 MAX C C C C C C C C C C C
C - Continuous exposure of the grating to the Chemical Environment listed at the temperature listed.
S - Frequent exposure of the grating to splashes and spills from the Chemical Environment listed with that environment at the temperature listed.
I - Infrequent exposure of the grating to splashes and spills from the Chemical Environment listed with that environment at the temperature listed and the spill immediately cleaned up or washed
from the grating.
N - Not recommended for the concentrations and temperatures listed.
T - Test
Super ViCorr may require benzoyl peroxide-DMA cure system to increase service life.
Consult Fibergrate for corrosion recommendations at concentrations, temperatures or chemicals not listed in this guide.
MAX TEMP is 400˚F for Super ViCorr; 180˚ for ViCorr and Pultruded VEFR; 150˚ for IFR, FGI, XFR and Pultruded ISOFR; 140˚ for Corvex.
The information in this Corrosion Guide is correct to the best of Fibergrate’s knowledge. It is based on extensive experience with fiberglass grating in corrosive applications. Because actual use
conditions differ and mixtures of corrosives will occur in service, the end user must test for use under actual conditions. Fibergrate’s responsibility for claims arising from breach of warranty, negligence or
otherwise is limited to the purchase price of the material sold by Fibergrate. Test coupons are available upon specific request.

Fibergrate Products & Services
Fibergrate ® Molded Grating
Fibergrate molded gratings are designed to provide the ultimate in reliable
performance, even in the most demanding conditions. Fibergrate offers the widest
selection in the market with more than ten resins including Chemgrate CP-84 and
more than twenty grating configurations available in many panel sizes and surfaces.
RIGIDEX ® Moltruded ® Grating
RIGIDEX Moltruded gratings are the first fiberglass gratings to combine the corrosion
resistance of molded grating with the longer span capacity of pultruded grating, all at
the low cost of metal gratings.
Safe-T-Span ® Pultruded Industrial and Pedestrian Gratings
Combining corrosion resistance, long-life and maintenance-free designs, Safe-T-Span
provides unidirectional strength for industrial and pedestrian pultruded grating
applications.
Dynarail ® Handrail
Easily assembled from durable prefabricated components or engineered to your
specifications, Dynarail handrail meets or exceeds OSHA and strict building code
requirements for safety and design.
Dynarail ® Safety Ladder System
Easily assembled on site, Dynarail safety ladder systems meet or exceed OSHA
requirements. Though less costly than prefabricated ladder systems, these safety
ladders provide a custom fit to the supporting structure.
Dynaform ® Structural Shapes
Fibergrate offers a wide range of pultruded structural components for industrial
use, including bars, rods, tubes, beams, channels, leg angles and plates.
Stair Solutions
Fibergrate offers a wide range of slip-resistant products to meet your stair safety
needs. These durable products which include treads, tread covers and covered stair
treads are a long-term, cost-efficient solution for your facility.
Fabrication Services
Combining engineering expertise with an understanding of fiberglass applications,
Fibergrate provides turnkey design and fabrication of fiberglass structures,
including platforms, catwalks, stairways and test racks.
©Fibergrate Inc. 2002 885105-01/08-7.5
Made in the USA
Fibergrate Composite Structures Inc. believes the information contained here to be true
and accurate. Fibergrate makes no warranty, expressed or implied based on this
literature and assumes no responsibility for consequential or incidental damages in the
use of these products and systems described, including any warranty of merchantability or
fitness. Information contained here is for evaluation only.
Fibergrate Composite Structures Inc.
Phone: 800-527-4043 • Fax: 972-250-1530
www.fibergrate.com • Email: info@fibergrate.com