SECTION B - Derry City Council

Q40
FENCING
125 1100 MM HIGH MILD STEEL ESTATE RAILING
o Manufacturer: To be confirmed/manufactured by Main Contractor
o Drawing References: 83473 - 01, 02, 03, 04 & 05
o Railing Height above ground level:1100mm
o Material: Galvanised Mild Steel. All materials to be polyester powder coated
Colour Black RAL 9005.
o Posts: 50 x10mm thick x 1530mm long solid galvanised mild steel posts
complete with rounded top and welded base plate 50 x 100 x 10mm thick. Posts
pre-drilled to accommodate 5 Nr. 20mm diameter solid horizontal bars. Posts
set in 300 x 300 x 560mm deep mass concrete surround. Posts at 1.0m centres.
o Straining posts: Posts as above, but complete with a 5 Nr double sets of
circular receiving lugs welded to each post to receive 5 Nr 20mm diameter
horizontals each side. Posts set in an additional concrete foundation of 450 x
450 x 560mm deep mass concrete surround. Posts at 4.0m centres.
o End Posts: As above with only 5 Nr single circular receiving lugs as shown on
the drawings
o Horizontal Rails: 5 Nr 20 mm diameter solid galvanised mild steel rails.
o Method of setting posts: In concrete as described above and as shown on the
drawings
o Other requirements: No sharp edges on either posts or rails. Rails to be parallel
to ground level and not stepped. Allow for all radii and curves on site.
o Special – top rail and fixing to Pillar Type 3 to balance Oak Leaf gates at Chapel
Garden – See Detail Sheet 2 83473 – 05
o Special – special Section of 1100mm high estate railing to corner of
Chapel – See Detail on Drawing Nr 83473 – 03.
o Allow for all site measurements and forming rake with rising ground, and all
excavations and foundations and supports as shoen on the drawings
250 1450 MM HIGH MILD STEEL SAFETY ESTATE RAILING
o Manufacturer: To be confirmed/manufactured by Main Contractor
o Drawing References: 83473 - 01, 02, 03, 04 & 05
o Railing Height above ground level: 1400 mm (although with a 50mm curved top
to each post makes the overall height 1450mm)
o Material: Galvanised Mild Steel. All materials to be polyester powder coated
Colour Black RAL 9005.
o Posts: 60 x10mm thick at top reaching 125 x 10mm thick at the base 1900mm
long approximately – as shown on the drawings, solid galvanised mild steel
posts complete with rounded top and welded base plate 50 x 200 x 10mm thick
to key into concrete foundation. Posts pre-drilled to accommodate 6 Nr. 20mm
diameter solid horizontal bars. Posts set in 450 x 450 x 610mm deep mass
concrete surround (although there will be an element of Contractor Designed
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