SIC codes assigned to Group 06 - Lumber, Building, and Hardware
- 1521 - Single-family housing construction
- 1522 - Residential construction, NEC
- 1531 - Operative builders
- 1541 - Industrial buildings and warehouses
- 1542 - Nonresidential construction, NEC
- 1611 - Highway and street construction
- 1622 - Bridge, tunnel, and elevated highway
- 1623 - Water, sewer, and utility lines
- 1629 - Heavy construction, NEC
- 1711 - Plumbing, heating, air-conditioning
- 1721 - Painting and paper hanging
- 1731 - Electrical work
- 1741 - Masonry and other stonework
- 1742 - Plastering, drywall, and insulation
- 1743 - Terrazzo, tile, marble and mossaic
- 1751 - Carpentry work
- 1752 - Floor laying and floor work, NEC
- 1761 - Roofing, siding, and sheetmetal work
- 1771 - Concrete work
- 1781 - Water well drilling
- 1791 - Structural steel erection
- 1793 - Glass and glazing work
- 1794 - Excavation work
- 1795 - Wrecking and demolition work
- 1796 - Installing building equipment
- 1799 - Special trade contractors, NEC
- 5211 - Lumber and other building materials
- 5231 - Paint, glass, and wallpaper stores
- 5251 - Hardware stores
- 5261 - Retail nurseries and garden stores
- 5271 - Mobile home dealers