The answer is generally “yes,” as long as the pre-finished (or site finished) floors are solid hardwood. If the flooring is engineered hardwood, the answer is usually “No.”
How many times can you refinish 5/16 hardwood floors?
Solid boards, which are usually 3/4 inch thick, have a 1/4- to 5/16-inch layer that covers the nails. They can sustain, on average, four major sandings and up to 10 minor ones that primarily remove finish.
What is the thinnest hardwood floor?
The thinnest engineered hardwood flooring has a 3/8-inch thickness, and installation requires nailing it into place. If you compare 3/8-inch vs. 1/2-inch engineered hardwood flooring, you will find that the 1/2-inch variety can be glued.