In construction framing (at least here in the USA) standard spacing of wall
studs, floor joists, as well as some other things is 16" on center. Those
marks are to help framing carpenters that are mathematically challenged to
easily know where to mark for spacing framing members.

Doc

On Thursday, April 17, 2014, Malcolm Thomas  wrote:

>
> Purchased a MF No 1506 tape measure, arrived today.  Every 16” is marked
> with two red triangles..
>
> https://dl.dropboxusercontent.com/u/37914238/wood/MF%201506%20marks.J
PG">https://dl.dropboxusercontent.com/u/37914238/wood/MF%201506%20marks.JPG
>
> Any clues as to why every 16” is marked this way ?
>
>
> Cheers
> Mal
> Oz
> (Perth to be more precise)
>
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