Oriented strand board (OSB) is another popular subfloor material. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood.

In fact, you may see a mixture of two different types of material: traditional plywood and an oriented strand board (OSB) product that has been gaining in popularity over the past decade.

Oriented strand board (OSB) is another popular subfloor material. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood.

Minimum thickness should be 5/8 inches for plywood and 23/32 inches for OSB. When joists are spaced 16-19.2 inches apart, subfloor should be ¾ inches for both materials.

Oriented strand board (OSB) is another popular subfloor material. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood.

Oriented strand board (OSB) is another popular subfloor material. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood.

Oriented strand board (OSB) is another popular subfloor material. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood.

Oriented strand board (OSB) is another popular subfloor material. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood.

Oriented strand board (OSB) is another popular subfloor material. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood.

Oriented strand board (OSB) is another popular subfloor material. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood.