5 8 Osb Subfloor For Hardwood

Thicknesses for products used for subfloors are generally 23 32 inch just under 3 4 inch but thicker sheets are available where building codes call for them.

5 8 osb subfloor for hardwood. Osb subflooring looks like and is a bunch of wood chips glued together. The slab should be flat prior to flooring and subflooring installation usually 1 8 in a 10 foot radius. On truss joist spacing of 16 406mm o c or less the industry standard for single panel subflooring is nominal 5 8 19 32 15 1mm cd exposure 1 plywood subfloor panels cd exposure 1 or 23 32 osb exposure 1 subfloor panels 4 x 8 sheets 2. Osb can be used for subfloors although it is not as common as cdx.

Install 23 32 inch or thicker osb panels in the proper orientation that is with the side marked this side down facing down. For 19 32 inch thick panels the joists should be 20 inches on center. Ensure that no fasteners are exposed or raised and that there is at least an 1 8 inch gap between osb subfloor panels. Keep in mind that for mechanically fastened floors osb doesn t hold fasteners as well as plywood so you need to use a thicker material to get the same holding power.

Osb oriented strand board subflooring. For 23 32 inch thick panels the joists should be at. Subfloor sheets for both osb and plywood come in 4 x 8 or 4 x 12 sheets. 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.

Hardwood flooring will not stabilize the osb subfloor so all movement must be remedied prior to hardwood installation. It is standard practice to install the hardwood floors. Most brands of hardwood flooring can be installed over concrete when plywood or osb subflooring panels have been installed over the concrete slab but it s wise to consult the manufacturer for any specific installation requirements. Moisture contents of osb subflooring must be established prior to hardwood flooring installations.

Tap tongue and groove sheets together with a hammer but leave a 1 8. 3 4 thick solid wood flooring can be installed directly over 3 4 thick osb subfloor.