Using warped planks in framing a home or in a sub floor may result in problems as floors and walls begin to buckle.
How to flatten a wood sub floor.
Low areas that are less than 1 4 inch deep can often be filled with building paper.
When nailing down a wood floor the subfloor should be flat to within 1 4 in 10 or 3 16 in 6.
Is there any way i can flatten it.
It is the responsibility of the flooring installer to assess and address substrate flatness before installation.
Installation of a wood floor over the subfloor insinuates acceptance by the flooring installer.
I ve read that laminate flooring can only be installed over flat subfloors.
As humidity or moisture from rain water falls onto the wood the lumber absorbs the liquid causing it to expand and bend.
I have a plywood subfloor with a few high low spots.
High areas such as peaked joints in the subfloor or other ridges in the wood subfloor can be power sanded or planed.