Flagstone is a generic sedimentary rock that is hardened through heat and pressure and then crushed for paving as crushed stones or cut into flat layers of shapes as dimension stones. Various types of flagstones include basalt, bluestone, limestone, quartzite, sandstone, slate, and travertine. The rock’s characteristics and color depend on the type of flagstone and cementing materials. Flagstones tend to be laid out as flag patterns on outdoor surfaces or paved as slabs for facades, fences, flooring, headstones, memorials, patios, roofing, walkways, and other construction.
