The cost to install a new subfloor and floorboards in a new construction ranges from $7,500 to $36,750 to cover 1,500 square feet, depending on factors like the choice of materials and local labor costs. On average, a new subfloor costs $2 to $2.50 per square foot, and floorboards run from $3 to $22 per square foot for materials and installation.
The time it takes to install flooring depends on the type of flooring. Installing laminate wood flooring in a single, simple-shaped, 200-square-foot room should only take around three hours, assuming you've already given the laminate at least three days to acclimate to the room. Carpet is usually quick to install, even with the addition of new underlayment. On the other hand, stone and ceramic tiles can take a full day or more to install.
The cost to refinish wood floors is about $3 to $8 per square foot. If you need grading and repair work to the subfloor, expect to pay a flooring contractor $60 to $120 per hour for this portion of the remodel. On average, floor repair costs $40 to $60 per square foot. While renovating, if you want to add underfloor heating, expect to pay between $6 and $20 per square foot for the cost of a radiant heat system.