Originally Posted by
Wildwood
+1 on the @
Road Fan technique, but i use a yard stick instead of a book, the long extention between my legs (ooopps...
) lets me make sure the measurement is taken perpendicular to the vertical. No assistant needed
.
lots of variations! Zinn had one where he used a 2” dowel as a pull up, with a line level glued to it to sense levelness. I don’t recall how he did the vertical measurement, which is the key point of the assistant, make the measurement while I hold everything together! With a big enough book I can mark the wall with a pencil or use a plumb line to capture the vertical distance, then measure it with a tape.