On 2011-03-03, David Nebenzahl wrote:
Alright, so this is Carpentry 101, but I'm gonna ask it anyhow.

Question concerns taking measurements where there is an inside corner:
how do you do it accurately?

Set tape measure on floor with backside of measure facing floor and
tape side facing up. Run tape up to top corner. Note measurement.
Now, add the measurement given on case of tape measure. No stepstool
needed.

nb