Question

Used lumber must have which of the following withdrawn before stacking?

A. Moisture
B. Any unlevel parts
C. Nails
D. All of the above

Answer 1

Used lumber must have moisture, any unlevel parts, and nails withdrawn before stacking.

Step-by-step explanation:

Used lumber must have all of the above (moisture, any unlevel parts, and nails) withdrawn before stacking. This is because these elements can affect the structural integrity of the lumber and create potential hazards. Moisture in the wood can lead to rot and decay, unlevel parts can cause instability, and nails can pose safety risks. Therefore, it is important to ensure that used lumber is thoroughly checked and prepared before stacking.