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Any horizontal level range of bricks, stones, etc., placed according to some rule or order in the construction of a wall, laid evenly. Coursed rubble, for example, is roughly dressed stones of the same height laid in courses, unlike random rubble, which is uncoursed and requires ingenuity in getting the stones to bond. Thus coursed masonry has courses of dressed stones (ashlar) of the same height, yet each course may vary in height. Courses may be described by position or function:base or plinth, blocking (plain course above a cornice weighing down the ends of the cantilevered sections of stone), bond (with every stone, or stones at regular intervals, bonding a wall), lacing (as bond, but with continuous ranges of brick or tile, and with piers every two metres or so, used in a flint wall for bonding, levelling, and strengthening), and string-courses are some examples.

Subjects: Architecture.

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