High Quality Content by WIKIPEDIA articles! Ashlar is prepared (or "dressed") stone work of any type of stone. Stone masonry utilizing dressed stones is known as ashlar masonry, whereas masonry using irregularly shaped stones is known as rubble masonry. Ashlar blocks are large rectangular cuboid blocks of masonry sculpted to have square edges and smooth faces. The blocks are generally about 35 centimeters in height. When shorter than 30 centimeters, they are usually called “small ashlar”. Ashlar blocks were used in the construction of many old buildings as an alternative to brick. Generally the external face is smooth or polished; occasionally it can be decorated by small grooves achieved by the application of a metal comb. (This process is usually used only on a softer stone ashlar block. The decoration is known as mason's drag.)

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