On Saturday, 22 May 2021 at 16:32:25 UTC+1, David WE Roberts (Google) wrote:
I have a gap into which I want to insert a cut piece of wood.
[More detail available if necessary.]

The gap is around 345 mm but there is a slight recess so I can't eyeball a
tape with the exact measurement (although I haven't found that very
accurate when I'm doing it anyway).

I thought of a sliding measure which could be locked when it fitted the
internal dimensions.

I looked on line but they all seem to be 1 metre plus minimum length.

Does anyone know of such a measure or have a sneaky alternative method?

I was hoping to set a rigid measure, then transfer the measurement
directly to a piece of wood which I would then cut to fit exactly.


Something like a bigger version of https://www.warco.co.uk/dividers-cal...ng-loaded.html ?