W Beam Crash Barrier · 2026-04-13
W Beam Crash Barrier BOQ and Tender Specification Guide
How to write a W Beam crash barrier BOQ line that leaves no room for dispute — components, standards, finish and the documents to demand.
Define the system, not just the rail. A W Beam supply is rail + posts + spacer/blocking pieces + splice and post bolts + end terminals + transitions (at structures) + reflectors. A BOQ that lists only 'W beam rail' invites arguments over what is included. Itemise the components or state clearly that the rate is for the complete installed system.
Cite the standards. Reference MoRTH Section 800 (clause 810), IRC:119, IS 2062 for steel, and IS 4759 / IS 2629 for galvanising. This anchors the specification to documents both parties can check.
State the performance requirement. Specify the containment level (e.g. IRC:119 / EN 1317 normal containment), the working-width class the site can accommodate (W1–W8), and the impact-severity level — not just 'W beam crash barrier'.
Fix the physical parameters. Rail thickness (3 mm, or 2.67 mm if that is your spec), panel length (4.32 m), post section (e.g. ISMC 150x75), post spacing (2 m, 1 m at hazards), embedment for the site soil, top-of-rail height (~700–760 mm), and zinc coating (550 g/m² minimum).
Specify ends and transitions. Name the end-terminal type(s) and require designed transitions at all structures — the most common omission.
Demand the documents. Mill test certificates, coating-mass reports, dimensional records, and state the inspection regime (factory, third-party or site).
Quantities. Estimate running metres by chainage, plus counts of terminals and transitions separately, so they are priced rather than assumed.
Metal Beam Barriers manufactures W Beam crash barriers to these parameters and can help frame the BOQ lines and quantities from your chainage schedule. Send your tender extract for a specification-matched, factory-direct quotation.
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