Oversize or Overweight Permits
- Click Here to download our moving permit for oversized / overweight vehicles
- Click here to download our Over Dimensional/Non-Divisible Form
- Moving that new home to your land over Mason County roads?
- Anyone hauling a load or driving a vehicle in excess of the legal weight or size limitations is required to have a permit before moving on Mason County roads (and a State permit for state roads).
In general, the Maximum Legal Dimensions:
| Width: | 8 feet, 6 inches |
| Height: | 14 feet |
| Length: | Single Truck 40 feet |
| Truck and Trailer 75 feet | |
| Trailer 53 feet. | |
| Weight: | Single axle: 20,000 lbs |
| Tandem axle: 34,000 lbs | |
| Tire size: 500 lbs maximum per inch width |
- Resolution adopting the Commerical Vehicle Guide
- Washington State Commerical Vehicle Guide
- See RCW 46.44.041 for the Washington State Vehicle Table
- There are also exceptions and additional requirements for oversize loads depending on the load, size of the load, total truck/trailer length and the route. See RCW 46.44 and WAC 468-38 for detailed information. For Mason County Permits, Call Public Works, Phone (360) 427-9670 Ext 450.