Log Cabin Half Dovetail Dimension Calculator and Template Generator

Enter inches as decimal or inch and fraction separated by spaces. ie: 3.75 = 3 3 4 or 3 3/4
Select appropriate angle and overlap to obtain desired log gap.

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This is a geometric calculator only.

Ensure gaps, angles, overlaps etc are suitable for construction.

If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks

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Check relevant local regulations for appropriate sizes, spacings and all engineering requirements.

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