Special trade contractors primarily engaged in concrete work, including portland cement and asphalt. This industry includes the construction of private driveways and walks of all materials. Concrete work incidental to the construction of foundations and concrete work included in an excavation contract are classified in Industry 1794; and those engaged in construction or paving of streets, highways, and public sidewalks are classified in Industry 1611.
- Asphalting of private driveways and private parking areas-contractors
- Blacktop work: private driveways and private parking
- Concrete finishers-contractors
- Concrete work: private driveways, sidewalks, and parking areas-
- Culvert construction-contractors
- Curb construction-contractors
- Foundations, building of: poured concrete-contractors
- Grouting work-contractors
- Gunite work-contractors
- Parking lot construction-contractors
- Patio construction, concrete-contractors
- Sidewalk construction, except public-contractors
- Stucco construction-contractors