👑 Crown Molding Calculator

Work out the exact length of crown molding required for your room by entering wall dimensions. Calculations show needed material plus extra to cover small errors in cuts or cuts that do not match perfectly.

👑Enter Your Room Measurements

Room Length(ft)

Room Width(ft)

Inside Corners

Standard rectangular room has 4

Outside Corners

Molding Piece Length(ft)

❓Frequently Asked Questions

How much crown molding do I need for a 12x12 room?

One small room measures 12 by 12 feet - its edge totals forty-eight feet. Since materials get trimmed down by ten percent, expect nearly fifty-three feet needed overall. That means seven segments of eight-foot molding will cover it, just about.

What size crown molding should I use?

When dealing with 8-foot ceilings, opt for molding between 3.5 and 5 inches wide. For rooms with ceilings measuring 9 to 10 feet high, choose pieces that range from 5 to 7 inches in depth. Larger ceiling spaces often accommodate bigger moldings without issue.