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Baseboard & Trim Calculator

Enter room dimensions, doorway width to exclude, and board length to calculate baseboard boards needed.

How to use this tool

  1. 1Enter room length and width.
  2. 2Enter total doorway width to exclude.
  3. 3Enter your trim board's length.
  4. 4See linear feet and boards needed.

Frequently asked questions

Why exclude doorway width?+

Baseboard doesn't run across door openings, so subtracting doorway widths from the room perimeter gives a more accurate material estimate.

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