| 909.21 Building Construction, Industrial (Warehouse, etc.) |
| 909.22 Building Construction, Non-Residential (Office Bldg., etc.) |
| 909.23 Building Construction, Residential (Apartments, etc.) |
| 909.24 Building Construction, Commercial and Institutional |
| 912.40 Demolition Services |
| 912.73 Paver Block Installation |
| 913.47 Construction, Sidewalk and Driveway (Includes Pedestrian and Handicap Ramps) |
| 914.30 Concrete |
| 914.55 Masonry |