Which term is used for the plywood or dimensional lumber covering walls beneath the siding that provides a base for fastening?

Which term is used for the plywood or dimensional lumber covering walls beneath the siding that provides a base for fastening?

• A. Siding
• B. Sheathing
• C. Framing
• D. Studs

Answer: (B)

This term refers to the layer that sits behind the siding and provides a flat, solid surface to fasten the exterior finish. That exterior wall sheathing is typically plywood or OSB and it strengthens the wall by tying the studs together, providing a nailing base for the siding, and helping the wall resist racking in wind. Siding is the finish applied over this base, while framing and studs are the structural skeleton inside the wall.

This term refers to the layer that sits behind the siding and provides a flat, solid surface to fasten the exterior finish. That exterior wall sheathing is typically plywood or OSB and it strengthens the wall by tying the studs together, providing a nailing base for the siding, and helping the wall resist racking in wind. Siding is the finish applied over this base, while framing and studs are the structural skeleton inside the wall.