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Baseboard/Trim Calculator

Calculate linear feet of baseboard or trim molding needed for rooms. Includes corner and door adjustments.

Room Measurements

Room Length*

m

Room Width*

m

Number of Doors

Door Width (typical)

m

Or calculate from dimensions below

Pro Tips from the Workshop

•Measure carefully - molding is sold in fixed lengths (8, 10, 12, 16 ft)
•Buy 10% extra to account for mitered corners and mistakes
•Pre-painted molding costs more but saves time
•Use coping saw for inside corners for professional look

Ready to Calculate

Calculate linear feet of baseboard or trim molding needed for rooms. Includes corner and door adjustments.

Baseboard Calculation

Baseboard covers the perimeter minus door openings:

Calculate room perimeter (2 × length + 2 × width)
Subtract door openings (typically 3 feet per door)
Add 10% for corners, cuts, and waste
Divide by board length to get pieces needed