A wall built in glazed-headed Flemish bond brickwork sample with different shades and lengths. Block is an analogous expression referring to a rectangular building device made up of clay or concrete, but is usually much larger than a brick. Lightweight bricks (also called light-weight blocks) are produced from expanded clay https://trevorppnkg.acidblog.net/67463982/not-known-factual-statements-about-building-a-building