Hardwood Floor Subfloor

Before you install your plywood subfloor first calculate the room s square footage to find out how much flooring you ll need to buy.

Hardwood floor subfloor.

Hardwood flooring may be installed straight onto the subfloor with only a sheet of red rosin paper intervening. If there is any deflection in the subfloor when walked on it would be advisable to add an additional layer of 3 8 or 1 2 thick plywood underlayment glued and screwed down. The key to a beautiful long lasting hardwood or laminate floor is a well prepared subfloor. This will expose the subfloor underneath which is where most leveling problems lie.

On the other hand the floors sometimes have more than three layers. Installation of a wood floor over the subfloor insinuates acceptance by the flooring installer. Hardwood floors do need a flat subfloor surface in order to prevent them from buckling after installation. Creating a flat subfloor involves lowering the high spots and raising the low ones.

When nailing down a wood floor the subfloor should be flat to within 1 4 in 10 or 3 16 in 6. Sub floor construction should have expansion areas of their own in the area of 1 8 1 4 between boards or sheets of ply. Old homes that have been extensively remodeled. If not your floor covering which is the solid hardwood laminate tile or other exposed flooring that goes on top of the subfloor will never be flat and level this problem can be fixed but it all depends on exactly what kind of uneven subfloor you have.

Floating sub floors for solid hardwood installations generally consist of two layers of plywood or allowing enough wood for a 1 inch flooring cleat to hold effectively. Usually manufactured in 4 by 8 foot sheets plywood panels and osb are acceptable subfloors for hardwood flooring as long as they are the proper thickness. Floating engineered wood floors can simply be installed directly on osb subfloor the hardwood flooring must be installed crossing the floor joists at a 90 degree angle. It is the responsibility of the flooring installer to assess and address substrate flatness before installation.

Use a pry bar to pull up hardwood floors one section at a time or unfasten carpet or laminate and roll it up from one end. 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. When it comes to hardwood flooring the quality of the installation will be determined by the quality of many things including the choice of subflooring and the condition its in. 1 suitable wood flooring.

A subfloor is meant to be flat and level.