Which scenario is correct?

Question

Scenario A: Corey is at Home Depot purchasing materials to build a tree fort.

Scenario B: Corey is home and is about to cut his first piece of wood to build a wall of the tree house.

In which scenario is it O.K. for corey to estimate his measurements? Why?

Answer 1

A. Because he doesn't need to be exact, he can always go back and get more material or take back any extra. If he cuts it wrong he wastes the material. Measure twice cut once.