Trim & Moulding Size Guide

I’ve been getting a lot of questions recently on what size moulding to install. Don’t take this guide as an absolute, many times we go against the recommended sizes for drama and it looks fantastic.  But this can be used as general advice.

  Ceiling Height
Moulding Size
6′ 9′ 10′ 11′ 12′ or more
Casing 2 1/4"
x        
Base 3 1/4"
x        
Crown 3 5/8"
x        
Casing 2 1/4" – 3 1/4"
  x x    
Base 4 1/4" to 5 1/4"
  x x    
Crown 4 1/4" to 5 1/4"
  x x    
Casing 3 1/4" to 3 1/2"
      x x
Base 5 1/4" to 7 1/4"
      x  
Crown 4 5/8" to 6"
      x  
Casing 3 1/4" to 3 1/2"
        x
Base 7 1/4" or more
        x
Crown 7" or more
        x

{ 1 comment… read it below or add one }

Randall Brown December 27, 2010 at 2:03 pm

Nice general guide. You must mean 8′ and not 6′ in you first ceiling height category.

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