Wide Plank Flooring – Cupped Boards

Cupped boards are common problems after installation often due to moisture damage or flooring that was not dried sufficiently to start with.


The 5″ piece of Beech Flooring is what a cupped board looks like before planing. Much of the imported pre-finished wide plank flooring has moisture issues. Better to rent a moisture meter and check the ends of the boards for moisture content before putting material down from another part of the world. If it is more than 8% consider returning it for a refund. We have seen pre-finished flooring measure at or above 12%.

I was skeptical when Merv told me that I could put down 1×8 boards without surface nailing or screwing–however it is true. When flooring is dried properly it lasts beautifully.