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Stair Stringers

Description

Available in 1 to 17 treads up to a metre wide. Manufactured in Pre-galvanised tube suitable for most installations or fully hot dipped galvanised for heavy duty or seaside applications.Stair stringers are generally manufactured in pairs and are available in 3 configurations;  landing to ground (bolt down base ), landing to ground (inground base), or landing to landing.  Standard rising is 175mm and standard going is 250mm. Configuration 1 – Landing to Ground (bolt down footing)Bits of Steel Supplies - Stair-Bolt-down  Configuration 2 – Landing to Ground (inground footing)Bits of Steel Supplies -Stair-Inground  Configuration 3 – Landing to LandingBits of Steel Supplies - Stair-landing-to-landing  Pre-galvanised stringers are made from Duragal or equivalent pre-galvanised RHS and galvanised stair tread brackets.   Hot dipped galvanised stringers are first manufactured and then sent to the galvanisers who will immerse the completed fabricated product into molten zinc.  This process provides are thicker coating than the pre-galvanised product.The following table shows the number of treads required for various vertical heights and horizontal lengths based on a standard rising is 175mm and a standard going is 250mm. 
NUMBER OF STEPSVertical HeightWeight Per PairHorizontal Length
mmKgsmm
135010250
252515500
370020750
4875251000
51050301250
61225351500
71400401750
81575452000
91750502250
101925552500
112100602750
122275653000
132450703250
142625753500
152800803750
1629751254000
1731501354250