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Old 01-04-2015, 05:02 PM
  #8  
Cari-in-Oly
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Join Date: Aug 2014
Location: Victorian Sweatshop Forum
Posts: 4,096
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It looks to me like each brick is positioned halfway up(or down) from the one before it. If your brick is 4", position the edge of the next one at 2", dead center of the first one.

Cari
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