What is the weight difference between normal-weight and lightweight CMU blocks?

What is the weight difference between normal-weight and lightweight CMU blocks?

• A. 2 lbs
• B. 3 lbs
• C. 5 lbs
• D. 8 lbs

Answer: (C)

The weight difference being tested is the typical gap in mass between normal-weight CMU blocks and lightweight CMU blocks. In practice, a normal-weight CMU weighs about 28 pounds per block, while a lightweight CMU runs around 23 pounds per block. That puts the difference at roughly 5 pounds per block. This lighter mass helps reduce dead load and makes handling easier on the job, which is why 5 pounds per block is the common, practical difference used in construction planning. The other numbers are not as representative of the usual gap between these two block types.

The weight difference being tested is the typical gap in mass between normal-weight CMU blocks and lightweight CMU blocks. In practice, a normal-weight CMU weighs about 28 pounds per block, while a lightweight CMU runs around 23 pounds per block. That puts the difference at roughly 5 pounds per block. This lighter mass helps reduce dead load and makes handling easier on the job, which is why 5 pounds per block is the common, practical difference used in construction planning. The other numbers are not as representative of the usual gap between these two block types.