Insulation Calculator
Enter the wall or ceiling area, target R-value, and framing details to estimate the batt insulation you need.
Estimate
How to use the insulation calculator
- Enter the area to insulate and your target R-value.
- Pick the insulation type, stud size, and spacing.
- Read the coverage estimate and add waste for trimming.
Questions
What R-value do I need?
It depends on climate zone and the assembly. R-13 to R-15 is common for 2×4 walls and R-19 to R-21 for 2×6 walls.