St. Clair Construction, Inc. owns a large fleet of construction equipment to include:
- 2019 Kenworth T880 Tractor
- 2020 Mack 4-Axle Dump Truck
- 2003 International 2574 Water Truck
- 1989 Truckweld Dump Trailer
- 2006 Ranco 32' End Dump Trailer
- 2012 Dakota Belly Dump Trailer
- 2013 Reitnouer 51' Drop Deck Trailer
- 2017 50 Ton Rampant Lowboy Trailer
- 2018 Cross Country Side Dump Trailer
- Ingersoll-Rand Air Compressor, Portable generators, compactors, cut-off saws, pumps, Optical level, Laserplane laser level, Laserplane pipe laser, double wall trench box
- 2016 PC290LC-11 Komatsu Excavator
- 2017 PC238USLC-11 Komatsu Excavator
- 2022 PC138USLC-11 Komatsu Excavator
- 2019 D51PX-24 Komatsu Dozer
- 2000 SD650 Komatsu Grader
- 2022 WA200-8 Wheel Loader