Historically, the term for large quantities of stone that were cut into large blocks. Dimension stones were used in foundations, piers, and stone-supported walls. It now refers to sized, hewn stone used as exterior facing, or blocks of stone used in windows, arches, chimneys, and other structures. Usually cut into square, rectangular, columnar, tabular, or wedge-shaped blocks.
Stone that is selected for or trimmed or cut to desired shapes and/or sizes. Used as building stone, markers, paving blocks or flagging, curbing, cut or carved ornaments and novelties, furniture (e.g., tabletops, laboratory bench tops and sinks), and industrial equipment that requires stone in shaped form (e.g., pebble mills or furnace liners).
Dimension stone is natural rock material quarried for the purpose of obtaining blocks or slabs that meet specifications as to size (width, length, and thickness) and shape. Color, grain texture and pattern, and surface finish of the stone are also normal requirements. Durability (essentially based on mineral composition and hardness and past performance), strength, and the ability of the stone to take a polish are other important selection criteria.