A: Is this going to cost thousands of dollars? Well, yes it is. You have a large area. Hardwood flooring is not like picking up a paint brush and roller. It takes years to learn how to refinish floors. Not to mention the cost of equipment. I charge $2.75 per sq. ft. for stain and finishing. I don't use sealers as a base coat for oil modified polyurethanes. Instead, I apply polyurethane with a lambswool applicator, buffed between each coat to assure adhesion. The first thing you need to determine is if your floors are salvageable. An old 3/8 thick strip floor is good for 2 sandings. It has already been sanded at least once and most likely twice. How much is left? I will be the last person to want you to waist your money. You need to think this through carefully. Hardwood flooring is a great investment in your house. If what you already have is done, then, a 3/4 thick floor will be the way to go.

