Simplify Your Oversize/Overweight Loads

  • Instantly Determine Permit & Escort Costs
  • Calculate Max Legal/Permitted Axle Weights
  • Understand Equipment Limits
See How It Works

District Of Columbia Axle Weight Limits

Axle spacings and weight calculator

Max Legal Weight for GVW under 80,000 lbs and Max Permitted Weight for GVW over 80,000 lbs

Vehicle configuration

Weight and Dimensions Restrictions

A Washington District of Columbia Oversize/Overweight Permit is required when traveling on any city street, state route, or interstate highway within the District and the vehicle and/or loads is:

  • Any vehicle exceeding the District axle and gross weight limitations (21,000 pounds for single axle, 34,000 pounds for tandem axle, see Chapter 25 of Title 18, DCMR);
  • Any vehicle wider than 8 feet - 6 inches (including load);
  • Any vehicle, other than a bus, over 40 feet long;
  • A vehicle with a combined overall length of over 55 feet;
  • A bus longer than 60 feet or wider than 8 feet - 6 inches;
  • A vehicle higher than 13 feet - 6 inches (including load.

For other details and costs see