USPS ZIP 48104
Ann Arbor · Washtenaw County, MI
ZIP Code 48104 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 48104 in Ann Arbor, Washtenaw County, Michigan. Delivered in unlocked Excel + color PDF takeoff layers within 24–48 hours, flat fee from $80.
ZIP 48104 Calibration Card
- Jurisdiction
- Washtenaw County
- ZIP Labor Index
- 109.5
- Material Freight Index
- 101.1
- Composite Multiplier
- 1.06x (105.7)
- Coordinates
- 42.2694, -83.7282
ZIP 48104 (Ann Arbor, MI) Burdened Trade Labor & CSI Assembly Rates
Calibrated for Strong Union / Prevailing Wage bidding in Washtenaw County (109.5 labor factor).
| CSI Division | Trade & Benchmark Assembly | ZIP 48104 Crew Rate | ZIP Installed Unit Cost | Flat Takeoff Fee |
|---|---|---|---|---|
| Div 26 | Commercial Electrical Distribution & LED Package | $85.96/hr | $20.72/SF | From $85 |
| Div 23 | Packaged VAV RTU + SMACNA Galvanized Ductwork | $81.91/hr | $23.68/SF | From $85 |
| Div 22 | Cast-Iron DWV + Type L Copper Domestic Plumbing | $83.44/hr | $10.36/SF | From $85 |
| Div 03 | 4,000 PSI Footings & Slab-on-Grade w/ Grade 60 Rebar | $71.07/hr | $251.57/CY | From $80 |
| Div 05 | A992 Wide-Flange Structural Steel + Metal Decking | $86.94/hr | $4492/TON | From $90 |
| Div 09 | Metal Stud Framing, Type X Gypsum & ACT Ceilings | $72.82/hr | $10.83/SF | From $80 |
| Div 31 | 3D GPS Mass Grading, Trenching & Select Structural Fill | $78.95/hr | $36.47/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 48104
Michigan Prevailing Wage Act (reinstated 2024, PA 10) requires prevailing wages on state-financed construction.
Order a ZIP 48104 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