SterlingOSB Zero T&G4 OSB3 Flooring Board 18mm 2440 x 590mm is a high-performance structural tongue and groove OSB board designed for load-bearing flooring, decking and construction applications. Manufactured in the UK by West Fraser, SterlingOSB Zero is an OSB3 structural panel suitable for use in dry and humid conditions. The combination of an 18mm board thickness and precision-machined tongue and groove edges makes this version particularly suited to structural flooring applications where secure board-to-board joints are required. The T&G4 profile means the board is tongue and grooved on all four edges. When installed, neighbouring boards interlock to create accurately aligned joints and a more continuous deck, making it a practical alternative to square-edge sheets for flooring and other supported structural applications. At 2440 x 590mm, the narrower board format is easier to handle than a full-width 1220mm sheet, particularly when working inside buildings and across floor joists. Its 18mm thickness provides a strong structural panel for appropriate load-bearing applications.
