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.
See, it doesn`t really cost so much per foot to build a house. The cost of the house is just averaged over the size. What I mean is that if the average cost per foot were say, $100 per foot and you removed a 120 square foot bedroom you would not save all of the $12,000 allocated to that room.The most expensive room in the house per foot is a bathroom.Add and extra bathroom to a house and while you may add 50 square feet to the house it will cost you nearly $3,300 in plumbing fixtures and labor (that`s an extra $66 per foot over the cost of the bedroom.he most expensive room in the house per foot is a bathroom. Add and extra bathroom to a house and while you may add 50 square feet to the house it will cost you nearly $3,300 in plumbing fixtures and labor (that`s an extra $66 per foot over the cost of the bedroom.