Permits Canada obtains oversize and overweight permits for Michigan for trucks and loads over the legal width, height, length or weight.
Michigan legal dimensions and weight
A truck and load within these limits needs no oversize or overweight permit in Michigan.
| Width | 102 in on designated highways (96 in on non-designated) |
|---|---|
| Height | 13 ft 6 in |
| Length | 53 ft semitrailer on designated highways (50 ft on non-designated) |
| Gross weight | Axle-based; vehicles may exceed 80,000 lb under Michigan axle loadings (max 11 axles) |
Michigan oversize permit rules
| Permits offered | Single trip (5 days), extended (annual) |
|---|---|
| Travel times | Daylight only (1/2 hr before sunrise to 1/2 hr after sunset), Monday to Friday; no movement from noon the day before until daylight the day after New Year's, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas (whole 3-day weekend when the holiday falls on a Friday or Monday) |
Standard single-trip permits are capped at 16' wide, 15' high and 150' long, and MDOT permits cover state trunklines only.
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 Michigan 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 Michigan state fee, which depends on the dimensions, weight and route.
Also need temporary registration or fuel tax coverage? See Michigan trip & fuel permits.
Michigan oversize permit questions
When is an oversize permit required in Michigan?
When the truck or load exceeds the Michigan legal limits: width 102 in on designated highways (96 in on non-designated), height 13 ft 6 in, length 53 ft semitrailer on designated highways (50 ft on non-designated).
What is the legal gross weight in Michigan?
The legal gross weight in Michigan is Axle-based; vehicles may exceed 80,000 lb under Michigan axle loadings (max 11 axles). A heavier truck needs an overweight permit.
Can oversize loads travel at night or on weekends in Michigan?
Daylight only (1/2 hr before sunrise to 1/2 hr after sunset), Monday to Friday; no movement from noon the day before until daylight the day after New Year's, Memorial Day, Independence Day, Labor Day, Thanksgiving and Christmas (whole 3-day weekend when the holiday falls on a Friday or Monday).
How much does a Michigan oversize permit cost?
Permits Canada charges $40 to $50 CAD per permit, plus the Michigan 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