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.
It depends. If you add something simple like a bedroom or family room the cost will be $100 to $150 per sq foot. If the add-on includes a bathroom, it will be much more.It also depends on your existing home.he amount of money that it will cost depends on what you want in the room addition. Recently, one of my clients asked for bids for a 400 square foot room addition for his home. The bids that he received were in the range of $35,000 to $45,000.