A Substructure | A10 | Foundations | Standard & special foundations, foundation walls, footings |
| A20 | Subgrade Enclosures | Below-grade perimeter walls enclosing basement space |
| A40 | Slabs-on-Grade | Standard & structural slabs, slab trenches, pits & bases |
| A60 | Water & Gas Mitigation | Building subdrainage, radon/methane mitigation |
| A90 | Substructure Related Activities | Excavation, dewatering, excavation support, soil treatment |
B Shell | B10 | Superstructure | Floor & roof structural frame, decks, stairs |
| B20 | Exterior Vertical Enclosures | Exterior walls, windows, doors, louvers, wall appurtenances |
| B30 | Exterior Horizontal Enclosures | Roofing, roof appurtenances, horizontal openings, skylights |
C Interiors | C10 | Interior Construction | Partitions, interior doors & windows, raised floors, suspended ceilings, specialties |
| C20 | Interior Finishes | Wall, floor & ceiling finishes, tile, paint |
D Services | D10 | Conveying | Elevators, escalators, material handling, operable access systems |
| D20 | Plumbing | Domestic water, sanitary drainage, compressed air, process plumbing |
| D30 | HVAC | Fuel systems, heating, cooling, distribution, ventilation |
| D40 | Fire Protection | Fire suppression, standpipes, fire protection specialties |
| D50 | Electrical | Power generation, service & distribution, lighting |
| D60 | Communications | Data, voice, audio-video, distributed communications & monitoring |
| D70 | Electronic Safety & Security | Access control, intrusion detection, surveillance, detection & alarm |
| D80 | Integrated Automation | Integrated automation facility controls |
E Equipment | E10 | Equipment | Commercial, institutional, vehicular, entertainment equipment |
| E20 | Furnishings | Fixed & movable furnishings, casework |
F Special | F10 | Special Construction | Special structures, integrated construction, special-function facilities |
| F20 | Facility Remediation | Hazardous materials remediation |
| F30 | Demolition | Structure demolition, selective demolition, structure moving |
G Sitework | G10 | Site Preparation | Clearing, site elements demolition, remediation, earthwork |
| G20 | Site Improvements | Roadways, parking lots, walkways, athletic areas, landscaping |
| G30 | Liquid & Gas Site Utilities | Water, sanitary sewerage, storm drainage, site energy & fuel |
| G40 | Electrical Site Improvements | Site electrical distribution, site lighting |
| G50 | Site Communications | Site communications systems |
| G90 | Miscellaneous Site Construction | Tunnels |
Z General | Z10 | General Requirements | Price & payment, admin, quality, temp facilities, closeout |
| Z70 | Taxes, Permits, Insurance & Bonds | Taxes, license fees, permit costs, bond fees |
| Z90 | Fees & Contingencies | Overhead, profit, construction contingencies, financing costs |