Baseboard Calculator
Calculate linear feet of baseboard molding needed for a room, including inside/outside corners and door openings.
Results
Visualization
How It Works
Baseboard molding covers the expansion gap where flooring meets the wall. Measure the room perimeter, subtract doorways, and add 10% waste.
The Formula
Net LF = Perimeter - (Doors x 3 ft) | Boards = CEIL(Net LF x 1.10 / Board Length)
Variables
- Perimeter — Total wall length around the room
- Door Opening — Standard doorway = 3 ft (no baseboard needed)
Example
52 ft perimeter with 2 doors: 52 - 6 = 46 LF + 10% = 50.6 LF. Need 7 pieces of 8-ft baseboard.
Tips
- Measure each wall individually for accuracy — rooms are rarely perfectly rectangular.
- Buy 12-ft or 16-ft boards for long walls to avoid splices.
- Cope inside corners instead of mitering for a tighter joint.
- Paint-grade MDF baseboard is cheaper than stain-grade wood.