A wall built in glazed-headed Flemish bond brickwork sample with several shades and lengths. Block is an analogous expression referring to an oblong building device composed of clay or concrete, but is normally larger than a brick. Lightweight bricks (also known as lightweight blocks) are constructed from expanded clay combination. https://lanetwun90000.blogthisbiz.com/43539004/building-a-house-can-be-fun-for-anyone