Baseboard & Trim Calculator

Project measurements

How to measure
  1. Measure the room’s length and width at floor level.
  2. Count the doorways where the baseboard stops.
  3. Pick the board length your store sells.

Quick start · tap one, then fine-tune

Room size
Measure by
Board length

Openings where the baseboard stops.

Results update as you type.

US length fields accept 12.5 or 12 ft 6 in. Your measurements stay in this page.

MAKE IT YOURSProduct & allowance assumptions5 settings · defaults shown · optional

36 in is a planning example; measure between the casings.

Default: 36 in

This Old House suggests adding 10% for waste. Use more for many corners.

Default: 10 %

Default: blank

Planning example: one spot per stud at 16 in.

Default: 16 in

Planning example: one near the top, one near the bottom.

Default: 2

Calculator by Nestsums