Orientated Strand Board (O.S.B.)

Is an exterior panel product that can be cut and painted and Sydenhams stock 2 grades. It is used for packing and sheathing ceilings and roofs.

OSB 2
This is the standard grade, stocked in 8mm, 11mm, and 18mm thick.

OSB 3
This is a conditioned grade that is more stable in moist conditions, stocked in 18mm thick.