In this tutorial, we learn how to prep plywood subfloor for hardwood and laminate with Lowe's. Before you prep your floor, read the manufacturers direction and information on the flooring. After this, gather all of your materials and tools you need to complete the job. Then, measure out the floor to figure out how much material you will need. Take off all the carpet and base boards from the room, then clean off the floor from dirt or dust. When finished, cover the subfloor with the right type of underlayment. Roll it out in strips, lay out the flooring. Cut off any excess material, then take care of this when you are finished.