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Crown Molding Calculator
Estimate crown molding linear feet for any room.
How does the crown molding calculator work?
Crown molding follows the room perimeter (2 × (L + W)). Add 10% waste for miter cuts, then divide by stick length (typically 8, 12, or 16 ft).
What else do people ask about this calculator?
How much crown molding for a 12×10 ft room?
Perimeter = 44 ft. With 10% waste = 49 ft. That's seven 8 ft sticks.
How much waste should I add?
10% is standard for straight rooms; 15% if you have many outside corners or coped joints.
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