How To Level Plywood Sub Flooring

If the uneven floor is due to floor joists that have warped or twisted over time or were incorrectly installed the only way to level the floor is to remove the subflooring and shim the joists.

How to level plywood sub flooring.

Thoroughly cover all areas with one coat of primer to enhance adhesion of the leveling compound to the plywood surface. Remove the existing flooring pull up the current floor. Helpful tips on how to pour self leveling concrete over a wood subfloor. Most leveling compounds are sold in powdered form and just need to be combined with a little bit of water in order to be effective.

Self leveling compound or underlayment can be poured over a wood subfloor but it. In this video you ll see how you can do plywood subfloor leveling using the plywood sheets. I was going to install a hardwood floor 5 8 thickness but ther. When installing a plywood subfloor on top of the slab at grade the thickness is governed by how long the fasteners for the flooring will be.

Pour the powder into a 10 us gal 38 l bucket and begin adding room temperature water little by little until the mixture thickens to slurry. Make sure to remove stray nails or staples. Pour a generous amount of mixed leveler onto the subfloor focusing on one or more wavy areas. Apply a latex floor primer to the entire plywood surface using a paint roller.

Use a brush for application in smaller areas. If the subfloor is plywood or particle board start by screwing down any loose boards or plywood sheets. Mix the floor leveling compound with water in a bucket following the manufacturer s directions. Allow the primer to dry thoroughly.

Use a pry bar and hammer to remove baseboards to create an expansion gap a space that allows the new flooring to expand from heat and moisture. Replace any nails with screws since nails that popped up will loosen again. This number is known as a span rating. When leveling floors made of wood you ll need to sand down any high spots.