Published 2026-10-02 · Sapulpa Spray Foam Insulation Kings

How Much Does It Cost to Spray Foam a Garage in Sapulpa?

Spraying foam in a typical two-car garage in Sapulpa costs about $1,600 to $2,800 with open-cell foam and about $2,000 to $4,000 with 2 inches of closed-cell foam. That assumes roughly 1,000 square feet of open walls and ceiling. Detached shops, taller walls, old insulation that has to come out, and code-required coatings push the number higher.

How Garage Spray Foam Is Priced

Spray foam is priced by the board foot, which is one square foot at one inch thick. In the Sapulpa area, open-cell foam typically runs about $0.45 to $0.80 per board foot installed and closed-cell about $1.00 to $2.00. A garage price is simply the area you spray, times the thickness, times the rate for the foam you choose.

A standard 20x20 garage with 8-foot walls has about 640 square feet of wall and 400 square feet of ceiling. At 2 inches of closed-cell foam, that is roughly 2,000 board feet, or about $2,000 to $4,000. At 3.5 inches of open-cell in 2x4 walls, it is about 3,500 board feet, or roughly $1,600 to $2,800.

What Moves the Price Up or Down

• Attached vs detached: an attached garage may only need the shared wall and ceiling, which costs less.
• Wall height: shops with 10 to 14 foot walls have far more area than a standard garage.
• Open vs finished walls: spray foam needs open framing, so finished drywall changes the plan.
• Prep: moving storage, masking the door and windows, and removing old insulation all take time.
• Fire safety: foam in a garage usually needs drywall or an approved thermal barrier coating.

Open-Cell or Closed-Cell for a Sapulpa Garage?

Open-cell foam is the budget-friendly choice for wood-framed attached garages, and it is excellent at quieting noise. Closed-cell foam costs more but resists moisture, adds strength and is the better fit for detached shops, metal garages and any space where condensation is a problem. With Oklahoma's humid summers, many detached shop owners choose closed-cell for the roof even if they use open-cell on the walls.

Do Not Forget the Room Above

If there is a bonus room over your garage, the garage ceiling usually matters more than the walls. Insulating and sealing that ceiling is one of the most effective ways to cool a room that runs hot all summer. Garage doors are better handled with an insulated door or a door kit plus weatherstripping, because foam adds weight that throws off the springs.

Get an Exact Number

The ranges above are planning numbers. A free estimate measures your garage, checks for moisture and gives you the foam type, thickness and price in writing. Learn more about garage spray foam insulation or, for steel buildings, metal building insulation.