In stacking panels of different heights, what is a key reason for keeping upper panels the same size or smaller?

• A. Reduces color variation
• B. Improves stability
• C. Increases price
• D. Slows curing

Answer: (B)

Keeping upper panels the same size or smaller helps stability during erection by avoiding overhang and keeping the load more directly over the supporting panels. This minimizes cantilever effects, reduces tipping risk from wind, crane movement, or shifting bracing, and makes temporary shoring and alignment more predictable. Larger upper panels would extend beyond the lower ones, increasing the tipping moment and complicating bracing, which can lead to instability. So the main idea is to control the load path and maintain a stable, braced stack as panels are erected. Color variation, price, or curing rate don’t impact stability in this context.