Baseboard Calculator

Find linear feet and pieces of baseboard for a room, minus doorways.

%

Baseboard pieces

4

  • Linear feet needed53.9 ft
  • Room perimeter52 ft

Estimates only. Round up when you order, and confirm structural details with your local building code.

How to use it

  1. Enter room length and width.
  2. Enter the number and width of doorways.
  3. Pick the stock length.

The formula

Linear feet = perimeter − doorways

Pieces = linear feet × (1 + waste) ÷ piece length

Worked example

Room length14 ft
Room width12 ft
Doorways1
Doorway width36 in
Piece length16 ft
Waste10 %

Result

Baseboard pieces4
Linear feet needed53.9 ft
Room perimeter52 ft

Tips before you order

  • Long pieces mean fewer joints — buy 16 ft lengths if you can transport them.
  • Use the same calculation for shoe molding and crown.

Questions

How much baseboard for a 12×14 room?

52 ft of perimeter minus one 3 ft door is 49 ft — about four 16 ft pieces with waste.