Interior Tools

Crown Molding Calculator

Calculate linear feet of crown molding needed for your project. Accounts for inside/outside corners, compound cuts, and waste factor.

Room Specifications

Material Estimate

Perimeter 0 ft
With Waste 0 ft
12-foot Sticks Needed 0
16-foot Sticks Needed 0
Inside Corners 0
Outside Corners 0
Coping Cuts 0
Est. Material Cost $0

Crown Molding Sizes

  • 2-1/4": Small rooms, 8ft ceilings
  • 3-1/2": Standard, 8-9ft ceilings
  • 4-1/2": Large rooms, 9-10ft
  • 5-1/2": Grand rooms, 10ft+

Formula

Perimeter = 2 × (Length + Width)

With Waste = Linear × (1 + Waste%)

Sticks = Linear ÷ 12 or 16

Corners = 4 per room

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