Education: Secondary (high) school graduation certificate. Tasks: Supervise other workers. Apply successive coats of compound and sand seams and joints. Cut and install metal corner beads to protect exterior corners. Fabricate and install suspended metal ceiling grids and place in panels to form acoustical and coffered ceilings. Fill joints, nail indentations, holes and cracks with joint compound using trowel and broad knife. Measure, cut, fit and install drywall sheets. Position and secure sheets to metal or wooden studs or joists. Smooth out excess compound and allow coat to dry. Tape over joints using taping machine and embed tape in compound. Prepare wall and ceiling layouts. Work at heights, on scaffolding or swing stages. Experience: 1 year to less than 2 years.