Thickness Of Subfloor For 3 4 Hardwood

When gluing down an engineered floor over a solid lumber sub floor a minimum underlayment of 3 8 thickness is recommended.

Thickness of subfloor for 3 4 hardwood. Thick x 4 in. Wide x random length solid hardwood flooring 16 sq. The thicknesses are as follows. 5 8 inch 15 88 mm 3 4 inch 19 mm 7 8 inch 22 23 mm the best and most common thickness of solid hardwood is 3 4 inch 19 mm.

Will i be ok if i use 2 staples and hit all the floor joists. The thicker the board the more it costs but the longer it will last. The preferred thickness is 19mm as a subfloor minimum 5 8 16 mm or 1 2 13mm as a floor panelunderlayment. I am adding 500 ft of 3 4 over 1 2 in plywood.

It is standard practice to install the hardwood floors at a 90 degree angle across the floor joists to stabilize and strengthen the whole floor structure. When gluing down to a plywood or osb sub floor many are tempted not to use an underlayment. A 3 8 inch subfloor is the bare minimum needed to be a good support. If i change the subfloor i will have a height problem where new floor meets the old floor.

For joists spaced more than 19 2 inches on center the minimum thickness for plywood is 7 8 inch and for osb 1 inch. I know that i am pushing the subfloor thickness but the rest of the house has 3 4 oak over the same subfloor. For heavier floors such as hardwood something closer to 9 16 of an inch is better. Blue ridge hardwood flooring hickory heritage grey hand sculpted 3 4 in.

If you re shopping for solid hardwood floors you ll find three thicknesses of boards. Check the underside of panel for codes. Wide x varying length solid hardwood flooring 20 sq. 7 16 15 32 and 1 2 inch thick panels require joists spaced 16 inches on center.

Ft case 5 76 sq. The subfloors need to be thicker. Thick x 2 1 4 in. The subfloor provides a support structure for the flooring that will go on top of it and to be successful the subfloor needs to be strong enough to support the flooring.

In all cases subfloors and underlayments are to be flat to within a 3 16 tolerance in an 8 10 foot radius. For joist spacing of more than 16 inches up to 19 2 inches on center the minimum thickness for both plywood and osb is 3 4 inch. 19 32 and 5 8 inch thick panels require joists spaced 20 inches on center. Conforming to us voluntary product standard ps2 or canadian performance standard can csa 03250 92 construction sheathing.

Case 3 99.