Solid Hardwood, Engineered and Laminate Flooring - How even should subfloor sections be under hardwood floors?

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DYInsane
06-17-07, 04:33 PM
I'm installing 3/4" hardwood in 2nd story rooms. As I expected from the squeaking floors beneath the prior carpet installation, the subfloor installation is not only "ugly", but not even at the panel intersections.

I'm concerned that as little as 1/32" of an inch difference between two subfloor sections is going to be a problem.

Can I shim with cardboard or plane it down to relieve my concerns? Should I replace the entire subfloor?

Thanks for your help!

Just Bill
06-17-07, 05:07 PM
Be sure to screw down the subfloor to get rid of any squeaks. after that it does not matter. The new floor is nailed tight to the subfloor. Just don't put a joint over a joint.
Carpets Done Wright
06-20-07, 09:42 PM
Yes, sand down the high seam joint edges.