> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hifi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Construction

> Reference table of construction industry codes and classifications.

| Industry                                                                         | Code   |
| :------------------------------------------------------------------------------- | :----- |
| New Single Family Housing Construction Except For Sale Builders                  | 236115 |
| New Multifamily Housing Construction Except For Sale Builders                    | 236116 |
| New Housing For Sale Builders                                                    | 236117 |
| Residential Remodelers                                                           | 236118 |
| Industrial Building Construction                                                 | 236210 |
| Commercial And Institutional Building Construction                               | 236220 |
| Water And Sewer Line And Related Structures Construction                         | 237110 |
| Oil And Gas Pipeline And Related Structures Construction                         | 237120 |
| Power And Communication Line And Related Structures Construction                 | 237130 |
| Land Subdivision                                                                 | 237210 |
| Highway Street And Bridge Construction                                           | 237310 |
| Other Heavy And Civil Engineering Construction                                   | 237990 |
| Residential Poured Concrete Foundation And Structure Contractors                 | 238111 |
| Non Residential Poured Concrete Foundation And Structure Contractors             | 238112 |
| Residential Structural Steel And Precast Concrete Contractors                    | 238121 |
| Non Residential Structural Steel And Precast Concrete Contractors                | 238122 |
| Residential Framing Contractors                                                  | 238131 |
| Non Residential Framing Contractors                                              | 238132 |
| Residential Masonry Contractors                                                  | 238141 |
| Non Residential Masonry Contractors                                              | 238142 |
| Residential Glass And Glazing Contractors                                        | 238151 |
| Non Residential Glass And Glazing Contractors                                    | 238152 |
| Residential Roofing Contractors                                                  | 238161 |
| Non Residential Roofing Contractors                                              | 238162 |
| Residential Siding Contractors                                                   | 238171 |
| Non Residential Siding Contractors                                               | 238172 |
| Residential Other Foundation Structure And Building Exterior Contractors         | 238191 |
| Non Residential Other Foundation Structure And Building Exterior Contractors     | 238192 |
| Residential Electrical Contractors And Other Wiring Installation Contractors     | 238211 |
| Non Residential Electrical Contractors And Other Wiring Installation Contractors | 238212 |
| Residential Plumbing Heating And Air Conditioning Contractors                    | 238221 |
| Non Residential Plumbing Heating And Air Conditioning Contractors                | 238222 |
| Residential Other Building Equipment Contractors                                 | 238291 |
| Non Residential Other Building Equipment Contractors                             | 238292 |
| Residential Drywall And Insulation Contractors                                   | 238311 |
| Non Residential Drywall And Insulation Contractors                               | 238312 |
| Residential Painting And Wall Covering Contractors                               | 238321 |
| Non Residential Painting And Wall Covering Contractors                           | 238322 |
| Residential Flooring Contractors                                                 | 238331 |
| Non Residential Flooring Contractors                                             | 238332 |
| Residential Tile And Terrazzo Contractors                                        | 238341 |
| Non Residential Tile And Terrazzo Contractors                                    | 238342 |
| Residential Finish Carpentry Contractors                                         | 238351 |
| Non Residential Finish Carpentry Contractors                                     | 238352 |
| Residential Other Building Finishing Contractors                                 | 238391 |
| Non Residential Other Building Finishing Contractors                             | 238392 |
| Residential Site Preparation Contractors                                         | 238911 |
| Non Residential Site Preparation Contractors                                     | 238912 |
| Residential All Other Specialty Trade Contractors                                | 238991 |
| Non Residential All Other Specialty Trade Contractors                            | 238992 |