SF in, bags out - using the real coverage of the exact product and dimensions, from 29.37 SF/bag mineral wool to 256 SF/bag R-11, because generic numbers leave jobs short.
For contractors converting insulation areas into supplier orders. Every product option carries its true manufacturer packaging coverage - the same per-bag figures our estimators order against on live projects.
| Bags / bundles to order | - |
| Coverage ordered | - |
| Overage vs net area | - |
Calibration note: coverage rates are cross-checked against production data from completed commercial projects (screw poundage on our recent Maine multi-family package came within 2% of these rates) and manufacturer coverage published per product. Quantities only, no pricing - this tool is built for contractors and estimators planning orders, not for pricing DIY rooms. For a bid-grade takeoff of an actual drawing set, send us the plans.
Because packaging varies enormously: an R-19 batt bag covers 87.5 SF in one width and 118.83 SF in another, and mineral wool runs a third of fiberglass coverage. Ordering from generic numbers is how jobs end up two pallets short.
Always - they live on different walls, use different products and install on different schedules. Run this calculator once per product, per scope.
No - it converts a known area into bags. Finding the correct area per wall type, catching where the drawings require mineral wool versus fiberglass, and separating thermal from acoustic scope is takeoff work.
When there's a real drawing set on your desk, send it over - certified estimators, 24-48 hours, every scope covered.
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