Fire-Resistant Assemblies - USG Corporation

Metric Conversions
USG Corporation USG Corporation supports the intent of the metric conversion program. USG has manufactured metric-sized products
Metric Policy for export for many years on a special-order basis. USG will make every reasonable effort to make metric products
Metric Equivalents
available to the federal market on a special-order basis.
USG interiors, Inc., is prepared to offer metric sizes in most of its acoustical panel and suspension systems.
From United States Gypsum Company, metric width and length Sheetrock gypsum panel products will be
available from designated manufacturing plants throughout the United States. Metric length dUrock cement board
products will also be available from designated manufacturing plants. Certain minimum-order quantities and service
charges may apply, as determined by local market conditions.
Bag and pail products, including Sheetrock joint treatment products, spray textures, gypsum plasters and
other products carry soft metric designations for size and/or weight.
Important: The basic USG product line remains unchanged—standard foot/inch/pound products previously available
from USG will still be readily available. The addition of metric length/width products will allow us to supply all job
requirements, whether standard or metric.
USG Corporation will offer assistance to construction professionals with regard to design, specification and
installation issues involving our metric products, just as we always have with our standard products.
Sheetrock gypsum panels
Dimension Conversion Typea ft./in. mmb Thickness Soft 1/4" 6.4
3/8" 9.5
1/2" 12.7
5/8" 15.9
3/4" 19.1
1" 25.4
Width Hard 24" 600.0
48" 1200.0
Length Hard 8' 2400.0
10' 3000.0
Steel Stud Framing
12' 3600.0
Thickness (gauge) Soft .0179" (25) .45
.0270" (22) .69
.0329" (20) .84
Width Soft 1-5/8" 41.3
2-1/2" 63.5
3-1/2" 88.9
3-5/8" 92.1
4" 101.6
Length Hard 8' 2400.0
10' 3000.0
12' 3600.0
72 USG Fire-Resistant Assemblies
Insulation
Dimension Conversion Typea ft./in. mmb Thickness Soft 1" 25.4
1-1/2" 38.1
2" 50.8
2-1/2" 63.5
3" 76.2
3-1/2" 88.9
4" 101.6
5-1/4" 133.3
6" 152.4
Width Hard 16" 400.0
24" 600.0
Length Hard 48" 1200.0
Notes
(a) Conversion Type: “Soft” is metric relabeling with no physical change of
dimension; “hard” is a physical change to the metric dimension shown.
(b) Conversion factors: inches x 25.4 = mm; feet x 304.8 = mm.
Availability: Items above are not stocked in metric lengths or widths.
Minimum quantity orders may be required. Leadtime should be determined;
service charges may apply. Geographic availability may vary and should be
verified for the project location.
Lengths: Shown on Sheetrock gypsum panels and steel stud framing
for illustration purposes only.
Framing Spacing: 16" o.c. converts to 400 mm o.c.; 24" converts to
600 mm o.c.
For More Information Check current printed USG literature for more information on product sizing and availability. Information on specific
metric product availability in your market area may be obtained from USG sales or customer service representatives.
For information, call toll-free:
Samples/Literature Technical Service
888 874.2450 800 USG.4YOU