Norbord Sterling OSB3 Tongue & Groove

Norbord Sterling OSB3 tongue-and-groove board is a structural flooring and decking panel used for loft floors, mezzanines and general timber-frame decking. The T&G edges on all four sides lock the boards together for a tight, squeak-free floor that spreads load across joists. As an OSB3 board it's rated for use in humid conditions, so it holds up in unheated lofts and during the build before the roof's watertight. Machined edges make for quick laying and a solid finish. Board size 2400 x 600mm. Fix down with glued joints and screws at recommended centres. Popular as a loft board and subfloor decking panel across Herts and London.