Bolted steel stair treads
Bolted stair treads with bearing and cross bars secured by bolts for industrial plant access. Removable and field-adjustable.
Product Description
Bolted stair treads use bearing bars and cross bars held together with bolts and nuts at each intersection instead of welding. This construction allows for removable or field-adjustable treads, making them suitable for maintenance access, areas where future inspection or replacement is anticipated, or projects where welding on-site is not preferred. Bolt heads are typically recessed or flush for safety. Available in plain or serrated surface, with nosing options and hot-dip galvanized or painted finishes.
| Specification | Details |
|---|---|
| Construction | Bearing and cross bars secured with bolts and nuts at intersections |
| Advantages | Removable, field-adjustable, no welding required on-site |
| Surface options | Plain or serrated for slip resistance |
| Materials | Carbon steel, stainless steel (304, 316) |
| Finishes | Hot-dip galvanized, painted, bare, stainless |
| Fixing | Bolted to stringers; clips or direct fastening per specification |
Stair tread applications by sector
Data centers
Access stairs to roof plant and data-hall mezzanines—match slip and load to owner standards.
Power generation
Boiler and turbine stair towers with washdown and condensate exposure.
Oil & gas
Module escape stairs and offshore companionways requiring serrated profiles and documented loads.
Related pages
Detailing notes
Used when treads must be removed for cable pulls or future retrofits without cutting welds.
Frequently asked questions
How is stair tread span defined?
Clear distance between stringers supporting the tread; verify with the supplier table for the model.
Plain or serrated nosing?
Match platform slip strategy; serrated nosing is common in wet plants.
Bolted vs welded treads?
Bolted eases replacement; welded is common for fixed industrial stairs.
Load basis?
Typically uniform load per stair width plus maintenance concentrated load if owner requires.
Galvanizing after fabrication?
Standard for carbon steel; vent per detail drawings.
Riser and going tolerances?
State expected fabrication tolerance class so nosing lines stay straight across flights.
Custom marking for escape routes?
Photoluminescent nosing or paint bands may be added—state in RFQ.
Need a quotation?
Send product type, spacing, material, finish, tread dimensions, quantity, and drawings.