Turn multiple room measurements into a paint purchase plan
- Set each product’s role, coverage, coat count, allowance and single container size using its label. Prices are optional.
- Enter room dimensions and actual door or window sizes. Assign finish products to walls and ceilings, and optional primer to selected surfaces.
- Generate and check product totals, whole containers, surplus and costs before exporting a PDF or CSV shopping list.
A measured room, not a universal coverage rule
A 5 × 4 × 3 m room has 54 m² of wall. Subtracting a 1 × 2 m door leaves 52 m². At two coats, 10 m²/L and 10% extra, it needs 11.44 L: three 5 L cans, with 3.56 L beyond that allowance.
Coverage and coats are user-supplied estimates, not manufacturer guarantees. One container size per product; no mixed-size optimization. US and imperial gallons differ. Missing prices do not count as zero.