Refinishing hardwood floors in the US typically costs between $3 and $8 per square foot, with an average project costing around $1,800. However, the total price can range from a few hundred dollars for a small room to over $6,000 for an entire house, and even up to $24,000 for very large homes.

Here’s a breakdown of the factors that influence the cost:

1. SQUARE FOOTAGE

This is the most significant factor. Larger areas naturally cost more.

For example:

40 sq ft…………. $120-$320
100 sq ft ………. $300-$800
400 sq ft ………. $1,200-$3,200
1,000 sq ft ……. $3,000-$8,000

2. TYPE OF WOOD

Some wood types are harder or require more specialized care, impacting the cost.  Common woods like oak and cherry typically cost $3-$5 per square foot.  Denser woods like maple and mahogany can be $6-$8 per square foot.  Pine can be $4-$7 per square foot due to its softness and tendency to clog sandpaper.  Bamboo can range from $2-$6 per square foot.  Engineered wood refinishing costs $3-$5 per square foot, but it’s crucial that the veneer is thick enough to sand.

3. CONDITION OF THE FLOORS

Floors with deep scratches, stains, gouges, or loose boards will require more extensive preparation and repairs, increasing the cost. Repairing damaged boards can cost $6-$12 per square foot. Subfloor repairs (due to water damage, etc.) can add $3-$10 per square foot.

4. TYPE OF FINISH AND REFINISH PROCESS

Sanding: Generally costs $0.50-$3 per square foot for basic sanding, but can be higher depending on the depth of sanding required.

Staining: Adds $1-$3 per square foot if you choose to change the color of the wood.

Topcoat/Finish
Oil-based polyurethane: Around $20-$50 per gallon (less expensive upfront but longer drying time).

Water-based polyurethane: Around $30-$55 per gallon (dries faster but usually more expensive).

Wax finish: $35-$55 per gallon.

Recoating/Buffing: If your floors only need a light refresh, recoating can cost $1-$2 per square foot.

Dustless Refinishing: This method uses commercial vacuums to minimize dust, but it’s typically more expensive, ranging from $5-$8 per square foot. Traditional refinishing (which creates more dust) is $3-$8 per square foot.

5. LABOR COST

Labor accounts for a large portion (up to 80%) of the total cost.

Hourly rates for flooring professionals can be $60-$160 per hour.

Labor costs also vary by geographic location and the complexity of the job (e.g., tight corners, stairs, multiple small rooms vs. one large open space).

6. ADDITIONAL SERVICES

Furniture Moving: Some contractors include this, while others charge an extra $20-$50 per room.

Old Carpet Removal: If you have existing carpet, removal and disposal can cost $1-$5 per square foot.

Cleanup: Some contractors include post-job cleanup, while others may charge an hourly rate ($60-$160) for it.

To get an accurate estimate, it’s always best to get quotes from multiple local flooring professionals. They can assess your specific floors and provide a detailed breakdown of costs.