Stairtreads are constructed using an open steel grating from the flooring range with a nosing bar / sight bar welded to the front edge and drilled end plates to allow for bolting to stair stringers.


All stair treads with the exception of stanweld are available with a liongrip pyramid or durbar nosing.

Type Designation Nosing Type
Safegrid / Safety Grating rectangular pattern RGL Liongrip
Safetread / Diamond Pattern DL Liongrip
Floor Plate CL Liongrip
Safelock rectangular pattern SLL Liongrip
Stanweld SC Convex

 Liongrip NosingConvex Nosing







                              Liongrip                                                                              Convex (Stanweld only)


Standard Drilled End Plate

Stairtreads are fitted with drilled end plates to allow them to be bolted to the supporting stringer. The drilled hole positions have been standardised across the whole range of treads, however alternative drillings are available on request.

The end plate drilling consists of one fixed and one slotted hole to allow flexibility during installation. The below sketch shows the standard end plate details.

 stairtread end plate detail


•Tread depth of 40mm and above have 80mm deep end plates with drillings 60mm down from the top of the tread.
•All end plates are 5mm thick.

Standard Tread Widths

Standard tread widths are determined by the flooring pitch and nosing width, if your application calls for an alternative width, this can be manufactured to suit however upsizing to the next standard size is usually acceptable as this will simply create a slight over-hang at the back of the stringer.


  • Safegrid
  • Safety Grating
  • Safelock Treads
Pitch Size Widths
41mm 206 204
247 245
288 288
329 327
30mm 222 220
252 250
282 280
312 310
Floorplate (8 OP)
Pitch Size Widths (mm)
n/a 206
Safetread Treads
Pitch Size Widths
40mm 200 n/a
240 n/a
280 n/a
320 n/a
38mm n/a 190
n/a 228
n/a 266
n/a 304



Need help with Technical Specifications?

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