Consumers can find free guides for do-it-yourself hardwood floor refinishing at Lowes.com, About.com and ThisOldHouse.com. These guides provide information from determining if a floor needs refinishing to dust control when sanding and applying the final finish.
Most hardwood floors can be refinished several times during their lifetime, but there are steps to make minor repairs to the finish without sanding to the bare wood. Older floors should be at least 3/4-inch thick before starting the refinishing process, but an individual can refinish newer floors that are at least 1/4-inch thick. Refinishing takes care of multiple scratches and finishes that have worn so thin they no longer protect the wood. If the floor squeaks, is warped or deeply stained, it requires repairing the damage before refinishing.