Uneven Subfloor For Hardwood

The process of fixing an uneven subfloor depends on the type of material you re dealing with and the cause of the problem.

Uneven subfloor for hardwood.

First make sure that the joists are even and not the cause of the problem. For concrete surfaces sanding and polishing may be required. This problem can be fixed but it all depends on exactly what kind of uneven subfloor you have. You must locate the low spots on the floor using a 4 foot.

If you have an irregularly shaped room divide the room into smaller squares and rectangles calculate the square footage of each smaller area and add them all together. Clean the uneven subfloor with a wet sponge and allow it to dry. Do this by multiplying the room s length by its width. They came ripped up the carpet today discovered that the sub floor is very uneven by about 1 2 at certain point.

How to install wood flooring over an uneven subfloor. 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. Fixing an uneven wood subfloor before wood floors safety glasses ear protection chalk line circular saw scraper shims hammer nails osb or plywood edger and abrasives moisture retarder such as asphalt saturated kraft paper or 15 or 30 felt. The subfloors need to be thicker.

Hold the wood in place with duct tape. For joists spaced more than 19 2 inches on center the minimum thickness for plywood is 7 8 inch and for osb 1 inch. When you install wood floors on uneven surfaces you must first use a leveling compound. A subfloor is meant to be flat and level.

Sand any rough edges of the leveling compound after it dries overnight using medium grit sandpaper. Vacuum away any dust. In order to properly install hardwood on uneven flooring the floor itself has to be smoothed out. First calculate the room s square footage to find out how much flooring you ll need to buy.

Then measure the difference between the high points and low points of the floor. The subfloor is made of particle boards. For plywood and osb oriented strand board over joists. If the floor simply tilts most hardwoods especially engineered hardwoods will be able to be installed quite easily.

This will help the. This can be done through the use of underlays and re surfacing. Here s how to fix a few common types of subfloors. Cut 2 foot by 4 foot pieces of wood to fit in any doorways in the room.

Wet dry vacuum hammer screwdriver long. Some area looks wavy. Spread the leveling compound over the low spots with a. The wood will keep the self.

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.