Spray Foam Calculator
Board feet of spray foam from area and thickness.
Inputs
sq ft
inches
%
Results
Board feet needed
1,650 bd ft
R-value achieved
11.1
Foam weight69 lbs
DIY material cost$743
Professional install cost$1,073
DIY kits (200 bd ft each)9
Acts as vapor barrierNo
How to Use This Calculator
- Enter Area to spray, Spray thickness, and Foam type.
- Set Open-cell (R-3.7/in, lighter, cheaper), Closed-cell (R-6.5/in, vapor barrier, structural), and Waste/overspray factor.
- Review Board feet needed (bd ft) and R-value achieved.
- Use Foam weight (lbs) and DIY material cost ($) to inform your decision.
Ad Placeholder
Related Calculators
Attic Insulation Calculator
Insulation depth and material from current and target R-value.
Wall Insulation Calculator
R-value and material from climate zone and wall assembly.
Insulation ROI Calculator
Payback period from energy savings and insulation cost.
Crawl Space Insulation Calculator
Insulation type and R-value for crawl space encapsulation.
Ad Placeholder