Thickness Of Osb For Flooring

Osb stands for oriented strand board.

Thickness of osb for flooring. A thickness of 18mm is adequate for non loadbearing uses in dry conditions. A subfloor that is less than 1 2 inch thick will dimple or. For 19 32 inch thick panels the joists should be 20 inches on center. If they are any thinner than that there can be a risk of swelling and warping.

Structurally osb and plywood are very similar in strength and ability to hold nails or screws. In germany both osb 3 and osb 4 are used for loadbearing purposes. Osb may have greater shear strength the ability to span distances than comparable thickness of plywood. A smooth surface is necessary for a subfloor.

If you only intend to use boards as cladding for visual effect they can be relatively thin. Osb has the appearance of giant cornflakes pressed together to form structural panels in sizes similar to plywood such as 4 x 8 x 5 8. Plywood shed flooring is usually 3 4 inch and osb 5 8 inch thick. Subfloor floor covering or finish floor is the term for the topmost eventual floor the floor that you walk on and see.

Using osb for flooring osb comes in plywood sized sheets that are typically 4 feet wide and either 8 9 or 10 feet long with thickness ranging from 3 8 to 1 1 8 inches. Subfloor goes between the joists or boards framing the floor. What are the thicknesses of subflooring. Osb can be used for subfloors although it is not as common as cdx.