commercial truck

All trucks, from a Chevy S-10, to the largest, heavy-duty trucks on the road, are classified into categories. Trucks are categorized by weight into classifications 1-9, and each grade comes with its own set of regulations and license requirements. Here’s a quick guide, from Repair Masters Automotive LLC in Boulder & Louisville.

Class 1
Light truck 0 - 6,000 pounds

Class 2
Light truck 6,001 - 10,000 pounds

Class 3
Light truck 10,001 - 14,000 pounds

Class 4
Medium truck 14,001 - 16,000 pounds

Class 5
Medium truck 16,001 - 19,500 pounds

Class 6
Medium truck 19,501 - 26,000 pounds

Class 7
Heavy truck 26,001 - 33,000 pounds

Class 8
Heavy truck 33,001 pounds

Class 9
Super-heavy / special duty truck 33,001 pounds

While any truck can be a commercial truck, a special license isn’t required until a truck exceeds 26,000 pounds, loaded. Classes 7 and 8 require a CDL, and class 9 is typically reserved for large specialty trucks, for use in mining and logging operations. Trucks falling in classes 1-6 don’t require special permits; just a normal driver’s license.

Whatever size truck you drive, Repair Masters Automotive LLC has you covered for all your repair and maintenance needs. From oil testing and tire replacements to diagnostics and major engine repair, our expert mechanics have the knowledge and ability necessary to keep your truck reliably on the road. Call or come by today.



Thank you for visiting Repair Masters Automotive LLC in Boulder & Louisville CO., you can count on our automotive repair technicians to keep your car, truck, SUV, or van, on the roads longer and safer! No matter the make or model we work on both domestic and European vehicles!

Service Areas: Boulder, CO | Louisville, CO | Jamestown, CO | Niwot, CO | Lyons, CO | Longmont, CO | Eldorado Springs, CO | Nederland, CO | Allenspark, CO | Lafayette, CO | Rollinsville, CO | Erie, CO | Broomfield, CO | Erie, CO | Westminster, CO | Eastlake, CO | Arvada, CO | Wheat Ridge, CO | Dacono, CO

  • Now Hiring
  • Jasper Pref
  • 24-Hour Dropoff
  • Acdelco
  • Air Lift Tow and Haul
  • ASE
  • BF Goodrich
  • Bridgestone Firestone
  • Cooper Tires
  • Draw-Tite Hitches
  • Dunlop Tires
  • Fleet Services
  • Flowmaster
  • Goodyear
  • Hankook Tires
  • Hunter
  • iATN
  • John Bean Alignment
  • Kelly Tires
  • Magnaflow
  • Michelin
  • Mastercraft
  • Motorcraft Parts
  • Pet Friendly
  • Radiator
  • Reese Hitches
  • Shuttle Service
  • Sumitomo Tires
  • Tech-net
  • Tires
  • Towing
  • Toyo
  • Uniroyal
  • 12 Month Warranty
  • Welding
  • Wifi Available

Repair Masters Automotive LLC

3501 Pearl St.
Boulder, CO 80301
Get Directions

location small (303) 442-2234
Email the Shop

SHOP HOURS

Weekdays:   8:00 AM - 5:30 PM
Weekends: Closed

Make An Appointment

Louisville Location

405 S Pierce Ave
Louisville, CO 80027
Get Directions

location small (720) 502-7783
Email the Shop