The floor underlayment is pretty good and cheap. It has all of the lines on one side but the other side is very good. I buy my 1/4" plywood at Lowe's and have them cut it into 1 foot by 4 foot pieces so it will fit in my car. I also just found out the Lowe's near me has 3 or 4 different hardwoods in 1/4" and 3/8" thick pieces.