Permits Canada obtains oversize and overweight permits for Maine for trucks and loads over the legal width, height, length or weight.
Maine legal dimensions and weight
A truck and load within these limits needs no oversize or overweight permit in Maine.
| Width | 102 in |
|---|---|
| Height | 13 ft 6 in |
| Length | 53 ft semitrailer (kingpin to rear axle max 45 ft 6 in); 48 ft without conditions |
| Gross weight | 80,000 lb for 5+ axle combinations; 100,000 lb for 3-axle tractor with tri-axle semitrailer |
Maine oversize permit rules
| Permits offered | Single trip, multiple trip (long-term overweight) |
|---|
The Maine Turnpike needs its own permit (max 13'6" high and 14'6" wide).
Getting your permit with Permits Canada
- Send us the online oversize / overweight application with your truck, trailer, load dimensions and route.
- A permit agent applies for your Maine permit and checks the route conditions.
- Your permit arrives by email with its travel conditions. Oversize and overweight permits can take longer, since the authorities review each application.
Our fee is $40 to $50 CAD per permit, plus the Maine state fee, which depends on the dimensions, weight and route.
Also need temporary registration or fuel tax coverage? See Maine trip & fuel permits.
Maine oversize permit questions
When is an oversize permit required in Maine?
When the truck or load exceeds the Maine legal limits: width 102 in, height 13 ft 6 in, length 53 ft semitrailer (kingpin to rear axle max 45 ft 6 in); 48 ft without conditions.
What is the legal gross weight in Maine?
The legal gross weight in Maine is 80,000 lb for 5+ axle combinations; 100,000 lb for 3-axle tractor with tri-axle semitrailer. A heavier truck needs an overweight permit.
How much does a Maine oversize permit cost?
Permits Canada charges $40 to $50 CAD per permit, plus the Maine state fee, which depends on the dimensions, weight and route.
Last reviewed October 2026. Rules change; your permit agent confirms them for each move. All provinces and states