Mason (Jurupa Valley, CA) Use bricks, concrete blocks, and other stone materials to build walls, fences, and other structures. Measures distances to lay out work. Mixes mortar and grout to be used to lay brick. Examines brickwork to ensure structure is built correctly. Carves out and builds structures and surfaces with bricks or concrete blocks. Must be able to lift 50 pounds at a time. Excellent hand-eye coordination.