The weight of one standard concrete block ranges between 38 and 50 pounds. All standard concrete blocks have a uniform size; however, the weight of each block may differ owing to a number of factors.
The size of a standard concrete block is 8 inches in depth, 8 inches in height and 16 inches in width. However, the weight of a standard concrete block varies owing to varying cement concentrations in the block.
Also, the weight of the concrete block made at one plant differs from that made at another since the materials used are different. Even blocks made at a single plant may not weigh the same, although they tend to have a uniform weight since the same material is used to make them.