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Calcimator

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$1,073
DIY kits (200 bd ft each)9
Acts as vapor barrierNo
How to Use This Calculator
  1. Enter Area to spray, Spray thickness, and Foam type.
  2. Set Open-cell (R-3.7/in, lighter, cheaper), Closed-cell (R-6.5/in, vapor barrier, structural), and Waste/overspray factor.
  3. Review Board feet needed (bd ft) and R-value achieved.
  4. Use Foam weight (lbs) and DIY material cost ($) to inform your decision.
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