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Not a very important question, but I'm wondering what the little diamonds are on my tape measure. It's a Stanley Fatmax from the UK © 2011. The first one is at ~488 mm (~19.2 inch), and then every ~488 mm after that along the tape, but they don't align with any regular measurement in can fathom.

enter image description here

Paul Uszak
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It is an alternative framing spacing, used for studs, joists and rafters. It is an "identifier" for a stud layout much like the 16" center layout where you will get an even amount of spaces over an 8 ft. piece of material, or for that matter a 16 ft. piece of material as well.

Jack
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