USPS ZIP 48103
Ann Arbor · Washtenaw County, MI
ZIP Code 48103 Construction Cost Estimating & Crew Wage Index (Ann Arbor, MI)
Bid-ready CSI MasterFormat Divisions 01–48 material takeoffs and labor cost estimates calibrated directly to postal code 48103 in Ann Arbor, Washtenaw County, Michigan. Delivered in unlocked Excel + color PDF takeoff layers within 24–48 hours, flat fee from $80.
ZIP 48103 Calibration Card
- Jurisdiction
- Washtenaw County
- ZIP Labor Index
- 105.8
- Material Freight Index
- 99.6
- Composite Multiplier
- 1.03x (103)
- Coordinates
- 42.2794, -83.7840
ZIP 48103 (Ann Arbor, MI) Burdened Trade Labor & CSI Assembly Rates
Calibrated for Strong Union / Prevailing Wage bidding in Washtenaw County (105.8 labor factor).
| CSI Division | Trade & Benchmark Assembly | ZIP 48103 Crew Rate | ZIP Installed Unit Cost | Flat Takeoff Fee |
|---|---|---|---|---|
| Div 26 | Commercial Electrical Distribution & LED Package | $83.05/hr | $20.19/SF | From $85 |
| Div 23 | Packaged VAV RTU + SMACNA Galvanized Ductwork | $79.14/hr | $23.07/SF | From $85 |
| Div 22 | Cast-Iron DWV + Type L Copper Domestic Plumbing | $80.62/hr | $10.09/SF | From $85 |
| Div 03 | 4,000 PSI Footings & Slab-on-Grade w/ Grade 60 Rebar | $68.66/hr | $245.14/CY | From $80 |
| Div 05 | A992 Wide-Flange Structural Steel + Metal Decking | $84.01/hr | $4378/TON | From $90 |
| Div 09 | Metal Stud Framing, Type X Gypsum & ACT Ceilings | $70.36/hr | $10.56/SF | From $80 |
| Div 31 | 3D GPS Mass Grading, Trenching & Select Structural Fill | $76.28/hr | $35.54/CY | From $95 |
MI Building & NEC Code Notes
Michigan Construction Code & Skilled Trades Regulation (LARA — Michigan Building, Electrical, Mechanical, and Plumbing Codes).
Site & Environmental Scope Factors
42–60 inch frost depth, Great Lakes lake-effect drift snow loads, and heavy crane/pit foundations for automotive stamping & battery lines.
Prevailing Wage Rules in ZIP 48103
Michigan Prevailing Wage Act (reinstated 2024, PA 10) requires prevailing wages on state-financed construction.
Order a ZIP 48103 Takeoff in Any of Our 22 CSI Trade Divisions
General Construction
Electrical
Mechanical
HVAC
Plumbing
MEP Combined
Fire Protection
Concrete
Masonry
Structural Steel
Carpentry & Wood
Roofing & Siding
Drywall & Insulation
Flooring
Painting & Coatings
Doors, Windows & Glazing
Excavation & Sitework
Civil & Infrastructure
Landscaping & Hardscape
Specialty & Technology
Demolition & Restoration
Industrial & Process