2026-10-06 · Paul Hayes
How Much Does It Cost to Spray Foam a 30x40 Shop Near Tulsa?
Spray foaming a 30x40 shop near Tulsa with about 2 inches of closed-cell foam on the walls and roof typically costs about $5,500 to $11,000. A roof-only condensation coat costs much less, about $1,250 to $2,500.
How Much Surface a 30x40 Shop Has
A 30x40 shop with 10-foot walls has about 1,550 square feet of wall including the gable ends and about 1,250 square feet of roof, so roughly 2,800 square feet. At 2 inches, that is about 5,600 board feet of closed-cell foam at about $1.00 to $2.00 per board foot.
Typical 30x40 Shop Prices
- 2 in closed-cell, walls and roof: about $5,500 to $11,000
- 1 in closed-cell, roof only: about $1,250 to $2,500
- 12-foot walls instead of 10: add about 20 percent to the wall portion
Closed-Cell or Open-Cell for a Shop?
Closed-cell foam is the right choice on bare metal. It bonds to the steel, works as a vapor retarder at about 1.5 inches, and gives about R-6 to R-7 per inch, so 2 inches is roughly R-13. Open-cell foam costs less per board foot but lets moisture through to the cold metal, so it is not sprayed directly on metal panels.
Is It Worth It?
If you work in the shop, heat it, or store tools and vehicles, yes. A sealed, insulated shop is far easier to heat with a small heater or mini-split. Read is it worth insulating a pole barn you use as a shop and see metal building and shop insulation.
Pole Barn Insulation Pros Tulsa offers free on-site estimates and written quotes seven days a week, 8am to 7pm. Call (918) 880-2499 or request a free quote online.