There are no square or rectangle pattern pieces included with The Compton pattern.  We suggest that all square and rectangle pieces be cut with a ruler and rotary cutter.  However, if you would like a pattern piece for the square and rectangle pieces, they can be found in this PDF download.
 
This is not the full Compton pattern. This file includes just the square and rectangle pieces for the pattern. The pattern must be purchased separately. 
 
Get the Full Pattern: The Compton by Simply Classic