0
votes
3answers
191 views

How to flatten the sagging OSB subfloor?

I am preparing the subfloor to install engineered hardwood floor by floating installation. However, the subfloor is too much sagging. There is a big area with about 5/32 depth. See: The real ...
7
votes
2answers
602 views

What do I need to do to raise a subfloor?

We're installing an engineered wood flooring in a room that already has a plywood subfloor. The engineered flooring will be 1/4" shy of the height of the hardwood in the other rooms, so I'd like to ...