I think it's called a framing sqare? 90 degree ruler about 24" by 12". I bought it at a garage sale about three years ago and forgot about it. I found it the other day, cleaned it up and starting using it. Measured a few boards, 5 1/2", 6 1/4", etc. No problems until I tried to measure 7 3/8". There were no 1/8" or 1/16" marks. The increments were in 1/12"???? Was this ever a standard anywhere?
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It may be an architectural square,
Architects lay stuff out in 1" = 1 ft scale so 1/12th of a inch on the scale
would be 1" in the drawing.
Loring in Katy, TX USA
If your only tool is a hammer, you tend to treat all problems as if they were nails.
BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions -
Simple... 3/8ths equals 4-1/2 twelfths...
...eight, nine, TEN! Yep! Still got all my fingers!Comment
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My guess it is a rafter framing square, used to lay out rafter cuts. Useful when you are building a roof with a 1 in 12 slope or any of the variations on it.Dennis K Howard
www.geocities.com/dennishoward
"An elephant is nothing more than a mouse built to government specifications." Robert A HeinleinComment
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1/12" that's like, two Bobs, right?BrianComment
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No...we don't use squares like that. T-squares back in the day, but not 90 degree squares. Plus they're strictly used for drawing straight lines. We measure with a scale.Originally posted by LCHIEN
What you've got sounds like a "rafter square". They're generally the same as a framing square...just with more gradations. 1/8, 1/10, 1/12 and 1/16 are "normal".I like Wagoneers too. Hey...they've got wood
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Owwwww!!
I think my brain just exploded....Originally posted by just4funsiesSimple... 3/8ths equals 4-1/2 twelfths...
g.Smit
"Be excellent to each other."
Bill & TedComment
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Ah-Ha
roof pitch. makes sense. I thought for a moment that it might be a practical joke by some European company.Comment
LCHIEN
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