I'm removing carpet and baseboard to install wood flooring. There's a space between the bottom edge of the drywall and the flooring. I'd like to use that space for the expansion gap for the wood flooring.
In that space are periodic little blocks of plywood. I'd guesstimate from memory they're about 3/8" to 1/2" square by 1 to 1-1/4" long. They're not fastened to anything. They don't reach up to the drywall. They just lay in the space.
What are those little blocks for?