# Tasks & work activities — stonemason

Source: O*NET 30.3, occupation 47-2022.00 (Stonemasons).

## Task statements

- **[Core]** Lay out wall patterns or foundations, using straight edge, rule, or staked lines.
- **[Core]** Shape, trim, face and cut marble or stone preparatory to setting, using power saws, cutting equipment, and hand tools.
- **[Core]** Set vertical and horizontal alignment of structures, using plumb bob, gauge line, and level.
- **[Core]** Mix mortar or grout and pour or spread mortar or grout on marble slabs, stone, or foundation.
- **[Core]** Remove wedges, fill joints between stones, finish joints between stones, using a trowel, and smooth the mortar to an attractive finish, using a tuck pointer.
- **[Core]** Set stone or marble in place, according to layout or pattern.
- **[Core]** Clean excess mortar or grout from surface of marble, stone, or monument, using sponge, brush, water, or acid.
- **[Core]** Lay brick to build shells of chimneys and smokestacks or to line or reline industrial furnaces, kilns, boilers and similar installations.
- **[Core]** Replace broken or missing masonry units in walls or floors.
- **[Core]** Smooth, polish, and bevel surfaces, using hand tools and power tools.
- **[Core]** Drill holes in marble or ornamental stone and anchor brackets in holes.
- **[Core]** Repair cracked or chipped areas of stone or marble, using blowtorch and mastic, and remove rough or defective spots from concrete, using power grinder or chisel and hammer.
- **[Core]** Remove sections of monument from truck bed, and guide stone onto foundation, using skids, hoist, or truck crane.
- **[Core]** Construct and install prefabricated masonry units.
- **[Core]** Dig trench for foundation of monument, using pick and shovel.
- **[Supplemental]** Position mold along guidelines of wall, press mold in place, and remove mold and paper from wall.

## Detailed work activities

- Align masonry materials.
- Apply decorative masonry finishes.
- Apply mortar.
- Cut tile, stone, or other masonry materials.
- Dig holes or trenches.
- Drill holes in construction materials.
- Install masonry materials.
- Mark reference points on construction materials.
- Mix substances or compounds needed for work activities.
- Operate cranes, hoists, or other moving or lifting equipment.
- Position construction forms or molds.
- Remove excess materials from finished construction projects.
- Smooth surfaces with abrasive materials or tools.
- Spread concrete or other aggregate mixtures.