Baseboard Trim Length
Quickly total the linear footage of baseboard trim required for a rectangular room. Provide the room's length and width, subtract the combined widths of doors or low windows, and the calculator returns the footage you should plan to purchase.
CalcSimpler Examples
- 20 ft × 15 ft room minus 6 ft of doors and 8 ft of windows ⇒ 56 ft
- 12 ft × 10 ft room minus 3 ft of doors and 6 ft of windows ⇒ 35 ft
- 18 ft × 13 ft studio with 4 ft door openings ⇒ 58 ft
FAQ
Should I add waste?
Yes, add at least 10% to account for miter cuts, defects, and future touch-ups.
Does it include closets?
Measure every wall segment that will receive trim, including closets or alcoves, and add them to your perimeter before entering values.
What if my room is not a rectangle?
Divide complex spaces into rectangles, calculate each separately, and sum the baseboard lengths for accuracy.
How do I handle stairs or railing posts?
Exclude any sections where trim is interrupted by stairs or posts and note the special cuts required for transitions.
Can I enter measurements in inches?
Yes. Convert inches to feet by dividing by 12 before using the calculator so the output remains in feet.
Additional Information
- Baseboard trim is typically sold in 8-, 10-, or 12-foot lengths; round up and add waste to match available stock sizes.
- Cutting scrap and coping inside corners usually requires an additional 5–10% allowance.
- If your room has nooks or hallways, break the layout into rectangles and sum the results for each segment.
- Convert results to meters by multiplying feet by 0.3048 if sourcing metric trim.
CalcSimpler