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Oriented Strand Board (OSB), available in a range of thicknesses, finishes and edge details. Suitable for many applications, you'll find a variant of SterlingOSB Zero to suit the likes of roofing, hoarding, drylining, timber frames and more. Now contains zero-added formaldehyde.

General information

Fully sanded

Touch sanded


Suitable for GRP/ fibreglass.

Uniclass 2015
Pr_25_71_97_58 Oriented strand boardsPrimary
Specification data - Oriented strand boards
Product Reference

SterlingOSB Zero


9 mm

11 mm

15 mm

18 mm

22 mm

Board size

590 x 2400 mm

T&G, four edges (15–22 mm).

590 x 2440 mm

590 x 2440 mm – T&G, four edges (15–22 mm).

1200 x 2400 mm

T&G, two edges (15–22 mm), and square edge (9–18 mm).

1220 x 2440 mm

Square edge (9–18 mm).

1200 x 2440 mm

T&G, two edges (15–22 mm).

1200 x 2700 mm

Square edge (9 mm).

Edge profile

Manufacturer’s standard



Fully sanded

Touch sanded


Suitable for GRP/ fibreglass.

Standard product features

Technical properties:

  • Oriented strand board to BS EN 300, Type OSB/3.
  • Zero-added formaldehyde.
  • Density: 620–640 kg/m³.
  • Thermal conductivity: 0.13 W/m·K.
  • Linear expansion: 0.15%, at 65–85% relative humidity.
  • Meets the E1 requirements as stated in BS EN 13986 or BS EN 300, Class 1.
  • Reaction to fire (BS EN 13501-1): Class D.
  • Tongue and groove boards have an expansion gap included in the T&G joint. A 10 mm expansion gap, or a total of 2 mm per metre of boarding, (whichever is the greater), must be left at perimeters and upstands for both square edged and T&G panels.
  • Sterling OSB is easy to saw, drill, nail, plane, file or sand. Nails can be driven as close as 8 mm from the panel edge without splitting.
  • Panels may be painted with any quality wood-paint system.
  • All T&G joints should be glued with a PVA adhesive recommended for wood.

Product Options


  • Square edge: 9–18 mm.
  • T&G: 15–22 mm.
  • Other sizes are available on request.

Board size:

  • Square edge: 1200 x 2400 mm, 1220 x 2440 mm and 1200 x 2700 mm.
  • T&G, two edges: 1200 x 2400 mm and 1200 x 2440 mm (laid measure).
  • T&G, four edges: 590 x 2400 mm and 590 x 2440 mm (laid measure).
  • Other sizes are available on request.


Panels can be unsanded, touch sanded, or fully sanded on both sides for industrial or decorative uses. However, the boards are currently smooth enough to accommodate GPR and fibreglass roofing systems.

Third party certifications
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