Baseboard linear feet calculator
Baseboard is sold by the linear foot. Formula used by RoomTakeoff: (2 × (length + width) minus door and opening widths) × (1 + allowance), rounded up. A 12 × 12 ft room has a 48 ft perimeter; with a 3 ft door and the 10 percent planning allowance that is 50 ft. The allowance covers mitered corners and cut waste; it is a planning assumption, so use a higher figure for many corners or patterned stock.
| Room | Perimeter | Door deducted | Baseboard to buy |
|---|---|---|---|
| 5×7 ft bathroom | 24 ft | 2.5 ft | 24 ft |
| 5×8 ft bathroom | 26 ft | 2.5 ft | 26 ft |
| 8×10 ft bathroom | 36 ft | 2.5 ft | 37 ft |
| 10×10 ft kitchen | 40 ft | 3 ft | 41 ft |
| 10×12 ft kitchen | 44 ft | 3 ft | 46 ft |
| 12×12 ft bedroom | 48 ft | 3 ft | 50 ft |
| 12×14 ft bedroom | 52 ft | 3 ft | 54 ft |
| 12×18 ft living room | 60 ft | 3 ft | 63 ft |
Add each extra door or closet opening you will not run baseboard along to the deduction in the planner, and round up to your stock length (check what your supplier sells).
Assumptions and sources
Waste percentages (5, 10, 15 and 20 percent), 350 sq ft per gallon paint coverage, 2 coats and a 1/8 in grout joint are RoomTakeoff planning assumptions, not figures taken from a manufacturer or standards document. Check the label on your tile, paint and trim, and confirm installation practice with the tile manufacturer or the Tile Council of North America resources linked below.
Open the planner