I’ve Always Noticed A Black Diamond On My Tape Measurer, But Had No Idea Why Until Now

“The diamonds, many call them “truss markings”. But in Canada, the are joist markings. The 3/4 inch floor sheeting is rated to a maximum of 24inch span. Or, 4 spaces (5 joists) for every sheet. But to shrink it up so it has more tolerance and not at it’s “maximum” They use a spacing that is smaller than 24in, but bigger that the old standard, 16inch (6 spaces/7 joists).”
Did you know this about tape measures? These devices have more going for them than you’d suspect.
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I’ve Always Noticed A Black Diamond On My Tape Measurer, But Had No Idea Why Until Now I’ve Always Noticed A Black Diamond On My Tape Measurer, But Had No Idea Why Until Now Reviewed by on Sunday, January 29, 2017 Rating: 5

1 comment:

  1. earlier builders weren't held to todays normal standards of 16" or 24". In an old farm house I bought I had trouble finding the layout for new plywood I was putting down until I discovered the 19 3/16 layout of the joists equaled 95 15/16,

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