Stairtreads

The bearer bar spacing for the stairtreads should not exceed 40mm due to the concentrated loads to which stairtreads are subjected.

Features

Non-slip perforated nosing is supplied as standard on all stairtreads. This nosing provides:

  • a non-slip footing
  • a sighting edge

A side plate is welded to each side of the stairtread for bolting to supports. These side plates are punched to accommodate 12 mm diameter bolts at centres shown for the various tread widths. Special designs of side plates, non standard punching or non standard sizes can be supplied to customer’s specification. Treads can also be manufactured without side plates for welding direct to stringers, tank sides etc. Prices are subject to quotation

Stairtreads

Tolerances

On Widths :
+/- 5mm
 On Lengths :
+0 -3

Materials and finishes available

Material
Finish
 Mild Steel
Uncoated
Bitumen dipped
Note: The bitumen coated grating supplied as a standard to our grating is not a protective coating as such, and deteriorate if exposed to the elements.
Galvanised
Other on application
 Stainless Steel
Uncoated
 Type 304 & 316
Pickled and
Passivated
 3CR12
Uncoated
Pickled and
Passivated

Stock sizes in Rectagrid

Size (mm)
Uncoated Mass (kg)
 600 x 205
4.4
 600 x 245
5.1
 750 x 205
5.4
 750 x 245
6.1
 900 x 245
8.1
 1000 x 285
10.2

Specifications

60×3 Stairtread Side Plates

1

80×4.5 Stairtread Side Plates

2

Dimension A mm
Dimension B mm
165
110
205
110
245
110/155
285
180
Dimension A mm
Dimension B mm
125
65
165
105
205
110
245
110
285
167