"Tom Watson" wrote:

A recent thread on using tape measures in the shop got me to
thinking
about this.

I went on Starrett's website and found that the most that they will
write up a Certificate of Accuracy for on a tape is +/- 1/32".
snip

Still remember from a surveying course that steel tape "stretch" had
to be accounted for when measuring with one.

Long since forgot how to do it, just remember it could be a problem.

Lew