Reccammendation Thickness Of Subfloor Before 3 4 Hardwood Goes Down
Thoroughly vacuum the existing floor and use a long floor leveler and tape measure to ensure the subfloor is level within 3 16 inch for every 10 feet.
Reccammendation thickness of subfloor before 3 4 hardwood goes down. For installations using mechanical fasteners 1 1 2 inches and longer subfloors should be within 1 4 inch in 10 feet or 3 16 inch in 6 feet. A thicker the veneer wears longer. Moisture is a never ending concern with slabs and the use of a 3 4 solid wood floor could cause the floors failure. For 23 32 and 3 4 inch panels joists should be 24 inches on center.
For 7 8 inch panels joists can be up to 32 inches on center and for 1 3 32 and 1 1 8 inch thick panels the joists can be. Not letting a subfloor dry. Obviously want to keep the height to a min so not sure if 1 4 or 1 2 would be suitable. Osb exposed during construction must be allowed to dry especially before installing sensitive finish materials such as hardwood flooring.
Nail down or floating floors may be installed over existing vinyl as long as it s no more than two layers thick. The thicker the board the more it costs but the longer it will last. I though i read that 5 8 or 3 4 plywood subfloor was recommended for hardwood. When gluing down to a plywood or osb sub floor many are tempted not to use an underlayment.
A wood subfloor should be osb or plywood of 3 4 or thicker for a hardwood floor installation. For glue down installations and those using mechanical fasteners less than 1 1 2 inches the subfloor should be within 3 16 inch in 10 feet or 1 8 in 6 feet. In all cases subfloors and underlayments are to be flat to within a 3 16 tolerance in an 8 10 foot radius. 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.
When gluing down an engineered floor over a solid lumber sub floor a minimum underlayment of 3 8 thickness is recommended. If that is the case i could add another layer as underlayment. Edge gold includes patented down pore grooves that help shed standing water and a proprietary edge seal to reduce edge swell. Always store floor panels under cover.
For engineered floors there are two components that make up the thickness the base layer or core and the veneer.