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Old 11-01-2007, 07:48 AM   #1
r69hammer
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Default Octagons

I want to make out of 2x4's a 36"OD octagon. Can someone tell me what the angle of cuts, and length of each side would be. I would appreicate any info someone could give me

Thanks
Ron
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Old 11-01-2007, 09:03 AM   #2
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Hi r69hammer

I'm sure someone will jump on this one.
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Old 11-01-2007, 11:29 AM   #3
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Quote:
Originally Posted by r69hammer
I want to make out of 2x4's a 36"OD octagon. Can someone tell me what the angle of cuts, and length of each side would be. I would appreicate any info someone could give me

Thanks
Ron

360 / 8 = 45 / 2 = 22.5

Last edited by Joe Lyddon; 11-01-2007 at 02:24 PM.
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Old 11-01-2007, 01:47 PM   #4
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The cuts will be 22 1/2 deg. 2 of those put together will make 45 deg.
I use that angle extensively when making my 8 sided lighthouses.
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Old 11-01-2007, 02:18 PM   #5
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Looks like Mike has you fixted up.
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octagons-hex-pattern-b.jpg  octagons-7839.jpg  
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Old 11-01-2007, 02:49 PM   #6
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Here's a calculator for determining the length of the sides.
I came up with 13.8"
http://www.cleavebooks.co.uk/scol/calpolyg.htm
You can save the .htm file and use it any time you need it. Go here for more.
http://www.cleavebooks.co.uk/
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Old 11-01-2007, 03:03 PM   #7
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You guys cheated and edited your posts.. LOL
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Old 11-01-2007, 06:19 PM   #8
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Quote:
Originally Posted by AxlMyk
Here's a calculator for determining the length of the sides.
I came up with 13.8"
http://www.cleavebooks.co.uk/scol/calpolyg.htm
You can save the .htm file and use it any time you need it. Go here for more.
http://www.cleavebooks.co.uk/
Good job AxMyk ! Actually 13.7766 inches or a strong 13 3/4" (close enough for the girls I hang around with !)
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Old 11-01-2007, 07:15 PM   #9
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Quote:
Originally Posted by steveo
Good job AxMyk ! Actually 13.7766 inches or a strong 13 3/4" (close enough for the girls I hang around with !)
Steveo
Hah. A dreamer you are.
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Old 11-02-2007, 09:13 AM   #10
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Thanks for all the info guys! Didn't realize it would spark so much interest.
Have a Great Day all
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