Chemical & Material
Oriented Strand Board Subflooring
The subfloor is the foundation beneath finish flooring materials. On wood-frame floors, the subflooring provides a continuous structural surface over the floor joists. Oriented strand-board, or OSB, subflooring is similar to plywood subflooring and arguably just as common. It is installed the same way as plywood and offers similar performance, often for a slightly lower cost.
- Types
- OSB/2 · OSB/3 · OSB/4
- Applications
- Residential · Commercial
5 editions29 December 2025