How Much Does It Cost to Polyurethane Hardwood Floors

To completely refinish a hardwood floor—including sanding down the top layer to bare wood, then applying several coats of new finish like polyurethane—expect to pay flooring professionals $1.50 to $4 per square foot, or $340 to $900 for a 15-by-15-foot room.

How much does it cost to polyurethane a wood floor?

Polyurethane finish costs around $40 to $100 per gallon depending on the thickness of the finish and the quality of the product. One gallon of polyurethane is usually enough to apply two coats over a 300-square-foot space. Polyurethanes come in both water-based and oil-based (alkyd-based) forms.

Is it cheaper to refinish hardwood floors or replace them?

In general, it will almost ALWAYS be less expensive to refinish your hardwood floors. If you replace them, you need to pay for additional wood as well as ripping up and hauling away existing hardwood. … Even if you have this, it will still be less expensive then replacing the whole floor.