Solid brickwork is made of two or more layers of bricks with the units running horizontally (called "stretcher" bricks) bound together with bricks running transverse to the wall (called "header" bricks). Each row of bricks is known as a course. The pattern of headers and stretchers employed gives rise to different bonds such as the common bond (with every sixth course composed of headers), the English bond, and the Flemish bond (with alternating stretcher and header bricks present on every course). There are no significant utilitarian differences between most bonds, but the appearance of the finished wall is affected. Vertically staggered bonds tend to be somewhat stronger and less prone to major cracking than a non-staggered bond.Fire bricks , sand struck brick, paving bricks, face bricks, are the varieties in bricks. The type of A type of brick that has sharp edges and corners is face brick.
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