| A | B |
|---|
| Subflooring... | provides a base for the underlayment and/or finish flooring material |
| Underlayment... | is the material placed under finish floor coverings (i.e. as carpet, to provide a smooth, clean surface). |
| Single thickness underlayment/subfloor... | is generally constructed of ¾” tongue and groove plywood. |
| Subflooring material... | can be 1" thick board lumber, placed diagonally. |
| Subflooring is most commonly... | Plywood or OSB in 4’x 8’ sheets. |
| Plywood or OSB subflooring... | can be installed quickly. |
| Cheaper subflooring can also be made of... | particle board or composite board. |
| Subflooring attaches directly to... | floor joists. |
