Baseboard & Trim Calculator
Estimate linear feet (or meters), pieces to buy, and optional cost.
Quick guide
- Start with total wall perimeter and subtract door openings.
- Choose a standard piece length (often 8 ft or 12 ft) to estimate how many pieces to buy.
- Add waste for miter cuts, corners, and defects (often 5-10%).
Baseboard & Trim Calculator
Estimate linear feet (or meters), pieces to buy, and optional cost.
Units
Optional prices
If both are provided, linear-foot price is used. Leave blank to hide cost.
Results
- Estimated linear feet (with waste)
- 123.2
- Linear feet (before waste)
- 112
- Estimated pieces
- 16
Note: corners, miter cuts, and out-of-square walls can increase waste. Buy a little extra if matching profile/color later matters.
How to estimate baseboard and trim
- Measure room perimeter (sum of all wall lengths) and subtract each door width.
- Decide if you're trimming closets and alcoves—include those lengths if needed.
- Convert total length into pieces using your chosen stock length and round up.
Assumptions to double-check
- Actual coverage depends on how you place joints and whether you scarf-joint long runs.
- Old houses may have out-of-square corners and require extra waste for fitting.
- Some trims are sold per piece; others per linear foot—use the pricing you have.
Buying tips
- Buy extra for matching color/grain and for future repairs.
- If you plan to paint, primed MDF is common; for stain, choose matching species.
- Check return policy for special-order profiles before buying extra.
Last updated: Dec 2025
FAQ
Do I subtract doors for baseboard?
Usually yes. Baseboard typically stops at the door casing, so subtracting door openings helps avoid overbuying.
What piece length should I choose?
Use the stock length you plan to buy (commonly 8 ft or 12 ft). The calculator rounds up to whole pieces.
How much waste should I add?
5-10% is common. Add more for lots of corners, complex rooms, or if you’re new to trim work.
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Browse this category →Disclaimer
Results are estimates for informational purposes only. Always verify measurements and product specifications.