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Kalkulator BD FT
Insulation Specialist

Kalkulator Izolacji Termicznej

Calculate board feet and coverage area for insulation materials.

Insulation Calculator

Calculate board feet and coverage area for insulation materials

Common Insulation Sizes:

Fiberglass Insulation

Most common type. R-value typically 3.14 per inch. Available in batts (pre-cut) or rolls. Standard widths: 14.5" (for 16" OC studs) and 22.5" (for 24" OC).

Rigid Foam Board

Higher R-value per inch (R-5 to R-6.5). Common sizes: 4'×8' sheets in 1", 1.5", and 2" thickness. Excellent for continuous insulation applications.

Spray Foam

Highest R-value (R-6 to R-7 per inch for closed-cell). Sold by board foot coverage. One board foot covers 1 sq ft at 1" thick. Expands to fill gaps.

Najczęściej zadawane pytania

How do I calculate insulation coverage?
Multiply width (in feet) × length (in feet) to get square footage. For board feet, multiply thickness (inches) × width (inches) × length (feet) ÷ 12.
What R-value do I need?
Depends on climate zone and application. Walls typically need R-13 to R-21, attics R-30 to R-60. Check local building codes for requirements.
How many board feet in a spray foam kit?
Common kits: 200 BF, 600 BF. One board foot covers 1 square foot at 1 inch thick. For 2" thickness, divide coverage by 2.

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→ Strona główna → Lumber Board Foot Calculator → Wood Weight Calculator → Log Scaling Board Foot Calculator → Plywood Board Foot Calculator → Standing Trees Board Foot Calculator → Wall Framing Board Foot Calculator → Spray Foam Board Foot Calculator → Philippines BDFT Calculator