Stair Treads & Nosings
Grating stair treads with serrated nosing for slip resistance.
What it is
Pre-fabricated grating stair treads with serrated anti-slip nosing and end carrier plates, galvanized and drilled to stringer drawings.
Applications
Materials
Finishes
Dimensional & Section Details
Engineering drawings for sizing, cross-sections and installation reference. Click any drawing to enlarge.
Buying stair treads & nosings — answered
Practical answers for procurement, engineering and EPC teams — covering specification, standards, finish, lead time and export logistics.
Open-grating treads with serrated bearing bars and a checker-plate or fiberglass nosing strip are the industrial default per IS 2713. The going (depth) is 240 or 270 mm, rise 175–200 mm. The bearing bar height matches the platform grating so the same panel sizes flow up the stair.
International safety codes (and good practice) call for a contrasting colour on the leading edge of every tread for visibility. Yellow, orange or photoluminescent strips are common. We supply the nosing with the contrast strip pre-painted or pre-bonded.
Yes — share the stringer drawing and we'll drill the carrier plates to match. This eliminates site rework. Bolt holes are usually 14 mm clear for M12 bolts; specify if your project uses different fasteners.
Yes — spiral-stair treads are fabricated as wedge-shaped panels with an inner and outer carrier plate. The bearing bars run parallel to the outer edge. Specify the inner and outer radius, the rise and the number of treads per turn.
Standard tread sizes ship in 2 weeks; bespoke (drilled to project stringer, spiral-stair, large quantities) take 3–4 weeks. For multi-storey industrial plants we often hold the steel and galvanize against weekly site call-offs.
Related lines
Manufacturing & Surface Treatment
All products are manufactured at Vajra's Howrah facility under ISO 9001:2015 quality management. In-house roll-forming, welding, galvanizing and testing — without sub-contractor dependency — ensures consistent dimensional accuracy and surface quality across export orders.
Precision Roll-Forming
CNC roll-forming lines capable of ±0.1 mm dimensional tolerance on MS, GI, SS, and aluminium sections.
Hot-Dip Galvanizing
In-house HDG plant conforming to ASTM A123 / IS 2629. Average coating: 85–140 µm. Pre-treatment: alkaline degreasing → pickling → fluxing.
Welding & Fabrication
MIG, TIG, SAW welding. Coded welders under ASME IX / IS 2825 qualification. Weld inspection by UT / DPT available.
Surface Treatment
Hot-dip galvanizing · Pre-galvanized GI · Powder coating (Tribo gun, 60–80 µm DFT) · Mill finish · Chromate passivation.
Available Material Grades
Surface Treatment Options
Manufacturing Tolerances
| Length tolerance | ±3 mm on standard lengths |
| Width tolerance | ±1 mm |
| Thickness tolerance | ±0.15 mm (IS 1079) |
| Straightness | ≤ 1 mm per 1 m |
| Galvanizing coat | 85 µm min (ASTM A123) |
| Squareness | ≤ 1 mm per 100 mm |
Global Supply & Export Documentation
Stair Treads & Nosings is exported under a documented supply chain — from factory test certification through customs clearance to door delivery. All shipments are packed to sea-freight standards with full export documentation prepared in-house.
Incoterms Available
- FOB Kolkata
- CIF Port of Destination
- CFR
- EXW Howrah Works
- DDP (on request)
Export Documents
- Commercial Invoice & Packing List
- Bill of Lading / Airway Bill
- Certificate of Origin (CoO)
- Inspection Certificate
- Phytosanitary Certificate (where applicable)
- MSDS / Material Safety Data Sheet
- Test Reports & Mill Certificates
Packaging Standards
- Wooden crate — sea-freight grade
- ISPM-15 heat-treated pallets
- Steel-strapped bales for structural sections
- VCI poly wrapping for corrosion protection
- Moisture-absorbing desiccant sachets
Compliance & Standards
Manufactured and tested to:
ISO 9001:2015 quality management system. Third-party inspection available on request (SGS, Bureau Veritas, TÜV).
Lead time: Standard stock items ship within 7–10 working days after order confirmation. Custom fabricated quantities: 15–25 working days. Express production available — contact our export desk.
Countries importing Gratings from India
Electroforged Gratings is in active demand across these markets. Click a country to see named importers, city-level volumes, and customs shipment intelligence.
GCC infrastructure, energy, and data-centre build-out with established Indian-origin supply lanes.
View marketASTM / NEMA-specified product for EPCs, OEMs, and industrial distributors.
View marketStandards-compliant structural and electrical components for mining, oil & gas, and infrastructure projects.
Importers in Sydney
View importersLNG infrastructure, post-World Cup development, and smart city projects driving cable management and steel demand.
View marketEurope's largest industrial economy — precision CNC components, structural steel and gratings for automotive, mechanical engineering and renewable energy sectors.
View marketSectors That Specify This Product
This product line is specified by procurement and engineering teams across the following sectors. Each industry page lists the specific product requirements, typical standards, and export documentation relevant to that buyer profile.
Power & Energy
Utilities & IPPs
Construction
EPC & civil contractors
Oil & Gas
Refineries & terminals
Manufacturing
Heavy process industry
Application engineering support: Our technical sales team provides product selection, load calculation references, and specification assistance for EPC, PMC, and procurement teams. Available for onsite consultation in major project cities.
Download Technical Documentation
Technical Datasheet
PDF · Engineering specifications · Export-ready
Complete engineering datasheet for Stair Treads & Nosings — dimensional data, material grades, tolerances, applicable standards, and export compliance information.
Free · No registration required · Gratings datasheet
Request a quote for stair treads & nosings.
Send drawings, a BOQ, or a simple description. You'll get a structured quotation covering specification, finish, lead time and Incoterms — from the manufacturer, not a middleman.
- MTC · COO · inspection reports
- ±0.01 mm precision · in-house QA
- FOB · CIF · CFR to all major ports