Masons lay brick, concrete block, stone, and other masonry units to build walls, partitions, and decorative structures. Trade training typically includes 3-4 year apprenticeships. Work includes site-built brick/block walls, historic masonry restoration, decorative stonework, and refractory linings. Masons work with various materials: clay brick, concrete block, natural stone, engineered stone, and refractory materials. Typical hourly rates range from $35-$70. Union masons belong to the International Union of Bricklayers and Allied Craftworkers (BAC). Specializations include historic restoration, thin brick veneer, decorative patterns, and chimney construction. Masons must understand mortar chemistry, drainage principles, and aesthetic design. Modern skills include thin-set installation and waterproofing.