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Old February 15, 2016   #44
Worth1
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Join Date: Feb 2006
Location: Den of Drunken Fools
Posts: 38,539
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Found this link to an octagon calculator going to drop it here.
When I get mine cut out to 6 1/2 inches square it should be 2 11/16ths on all sides.
Worth
https://www.google.com/url?sa=t&rct=...MDA89p57dTaK5A
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