Spray Foam Calculator

Enter your information into the spray foam insulation estimate calculator to determine how much foam you need for your project. Recommended Thickness Chart is contained at the bottom of this page.

Spray Foam Calculator







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Spray Foam Calculator

Recommended Installed Thickness Chart
Application Type of Foam Thickness (inches)
Metal Buildings Closed Cell, 1.75 lb. 0.5 - 2
Walls (Hybrid Installation) Closed Cell, 1.75 lb. 0.5 - 2
Walls Non-Hybrid Closed Cell, 1.75 lb. 2 - 3.5
Walls (Southern Climates or Sound Proofing) Open Cell, 0.75 lb. 3 - 5.5
Ceiling Hybrid Installation Closed Cell, 1.75 lb. 0.5 - 1
Roof (Attic Side Open Cell) Open Cell, 0.75 lb. 5 - 6
Roof (Top side, flat roof) Closed Cell, 2.5 lb. 1 - 2
Floor (Air Seal) Closed Cell, 1.75 lb. 0.5 - 1
Floor (Air Seal & Insulate) Closed Cell, 1.75 lb. 1 - 3
Crawl Space Walls (Air Seal) Closed Cell, 1.75 lb. 0.5 - 1
Crawl Space Walls (Insulate) Closed Cell, 1.75 lb. 1 - 2.5