Michigan Residential Builders License Practice Test

How much does one cubic foot of concrete typically weigh?

1. 100 lbs

2. 150 lbs

3. 200 lbs

4. 250 lbs

The correct answer is: 150 lbs

One cubic foot of concrete typically weighs around 150 pounds. This weight is based on the average density of standard concrete mixtures, which generally range from about 140 to 160 pounds per cubic foot, depending on the specific materials used in the mix as well as any added components. Because concrete is primarily composed of cement, sand, gravel, and water, these components contribute to its overall density. Understanding the weight of concrete is essential for builders and contractors when planning for structural load-bearing capacities and making material calculations for foundations, slabs, and other applications. Additionally, knowing the typical weight helps in planning transportation and handling logistics on a construction site.