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How to Measure Baseboards

Cadence Johansen

Baseboards are one of the most common types of molding in a room. Without baseboards, a room looks unfinished. Homeowners who are replacing their baseboards will need to measure the existing baseboards to know how much of the new molding to purchase. Precise measurements of the old measurements will help, but homeowners should also add about 10 percent to the final sum of the measurements. This addition will allow for mistakes that are inevitably made during installation.

Baseboards can make an otherwise bland room look classy.
  1. Choose a place in the room that will be your starting point for measuring the baseboards. Typically, it is easiest to start with the first wall to the left of the main door in the room.

  2. Draw a rough outline of the room on a piece of paper with a pencil. Indicate where the doors in the room are located.

  3. Measure the first length of baseboard with a measuring tape. Ask a partner to hold the measuring tape flat against the wall above the baseboard while you stretch the tape out to the end of the baseboard. Take the measurement to the closest 1/16th of an inch. Write the measurement down on a piece of paper, matching the measurement with the appropriate wall in the rough outline.

  4. Measure the remaining baseboards with the measuring tape. Write the measurements down with the corresponding walls on the rough outline of the room. When you are finished, you should have a rough drawing of the room with the measurements of the baseboards next to the walls.