Glue down is more for us. The glue often costs .75/ft. If the subfloor is concrete, sealer (2 coats) adds another .50/ft. Then you add $3/ft. minimum for the install itself. Nail downs start at $3/ft. Wood floors are all we do and we are very conscious of doing our jobs to the best of our ability.
1 Home addition cost estimates of $80 to $130 per square foot for a basic family room addition is common. 2  If the home addition includes a bathroom and/or a kitchen, the room addition costs can easily escalate to $200-250 per square foot.
Some of them charge more per square foot on smaller jobs to offset the cost of transportation, insurance, etc. It's not unusual for a small bedroom to cost almost $3.00 per square foot while a 14,000 square foot home is priced at $1.15 per square foot. 1  Location of the job site.