Bob, our in-house installer, has a simple & effective way for measuring stair parts, even with tricky angles without using a traditional tape measure.
Trying to get accurate measurements for stair parts can be frustrating when using
flexible metal measuring tapes. One simple, no-cost and accurate work-around
is to create an adjustable, sliding “story stick.”? Just select a straight board at least 24
inches long and cut 1 inch off each side, saving the sides and discarding the middle
piece. Then fit the tongue and groove together. Now you can quickly and easily get
inside dimensions for stairs, even with complicated angles. Rubber bands on each
end or mini spring or bar clamps can be used to secure the pieces at a given length.