also called concrete block, breeze block, CMU, concrete masonry unit
About
A standard rectangular building block that packs heavy structural strength into a compact frame.
While their face length and height stay standard, their depth commonly varies between 4 and 12 inches (10 and 30 cm) depending on the wall thickness needed. Traditional red clay bricks are less than half this length and weigh only around 5 pounds (2.3 kg). Large hollow cavities take up nearly half the volume of the block to make lifting easier and allow room for reinforcing steel. Even with those open hollows, a single block still weighs more than three full gallons of milk.
From Wikipedia
A concrete block, also known as a cinder block in North American English, breeze block in British English, or concrete masonry unit (CMU), or by various other terms, is a standard-size rectangular block used in building construction. The use of blockwork allows structures to be built in the traditional masonry style with layers of staggered blocks.
Read more on Wikipedia →Text from Wikipedia’s “Concrete block” article, CC BY-SA 4.0.
2 on the site
Weight
34.2 lb (15.5 kg)
Quick answer
A standard cinder block measures about 15.7 inches (0.4 m) long and 7.9 inches (0.2 m) tall, weighing around 34.2 pounds (15.5 kg). This makes an individual block roughly as heavy as an average four-year-old child.
Typical figures, the same ones every comparison on the site uses; real ones vary.
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