Wall batt insulation calculator
Kraft-faced batts for open 2x4 or 2x6 walls, with staples, air-sealing caulk and a vapor retarder where the climate wants one.
An estimate of the materials a job takes, worked out in your browser: check it against the job, and against your local code where it matters. Nothing you type leaves this page.
Put in the job's numbers and choices, and the list below follows them.
What it takes
Worked out for Wall area 1,500 sq ft, Studs: 2x4, A poly vapor retarder: No.
Insulation
- R-15 batts, kraft-faced 19 bag (Wall area 1,500 sq ft × 0.9) ÷ 75 (2x4): 18 bag; plus 5% waste: 18.9; rounded up to whole bag: 19. The bays are about nine-tenths of the wall: the studs are the rest.
- Insulation staples, 1,000 ct 3 box Wall area 1,500 sq ft, one per 500: 3 box.
- Acoustic caulk 8 tube Wall area 1,500 sq ft, one per 200: 7.5 tube; rounded up to whole tube: 8. Seal the plates and penetrations.
Left out: 6 mil vapor barrier, 1,000 sq ft roll (only when A poly vapor retarder is Yes).
Labor
- Batt insulation installation 1,500 sq ft Wall area 1,500 sq ft: 1,500 sq ft.
What it leaves out
- Drywall
- Removing old insulation
The same calculator in SMG Tools
In SMG Tools this calculator fills its numbers from the client's site measurements, prices every line from your own Price Book, checks the margin against your target, and carries the lines onto the proposal, the job's plan and the purchase order. It is one of the ready-made calculators SMG Tools sets up for gutters, siding and insulation, and calculators are on every plan.