Permits Canada obtains oversize and overweight permits for Missouri for trucks and loads over the legal width, height, length or weight.
Missouri legal dimensions and weight
A truck and load within these limits needs no oversize or overweight permit in Missouri.
| Width | 8 ft 6 in |
|---|---|
| Height | 13 ft 6 in (14 ft on Interstates, designated and primary highways and within 10 miles of them) |
| Length | 53 ft trailer including load |
| Gross weight | 80,000 lb |
Missouri oversize permit rules
| Permits offered | Single trip, annual blanket |
|---|---|
| Escorts | Over 12'6"-14' wide: 1 front on two-lane, 1 rear on other highways; over 14'-16': front and rear on two-lane/undivided, rear on divided; over 16'-18': front and rear everywhere plus extra front and police on two-lane; over 18': front, rear and police everywhere; 110'-125' long: rear escort except on divided highways; over 125': rear escort on all highways; over 15'6" high: front height-pole escort |
| Travel times | Oversize loads: 1/2 hr before sunrise to 1/2 hr after sunset; night moves allowed up to 12'6" wide and 110' long at legal height; weekends allowed up to 16' wide; overweight-only loads may move continuously; holiday restriction periods start at noon and end 30 min before sunrise |
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 Missouri 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 Missouri state fee, which depends on the dimensions, weight and route.
Also need temporary registration or fuel tax coverage? See Missouri trip & fuel permits.
Missouri oversize permit questions
When is an oversize permit required in Missouri?
When the truck or load exceeds the Missouri legal limits: width 8 ft 6 in, height 13 ft 6 in (14 ft on Interstates, designated and primary highways and within 10 miles of them), length 53 ft trailer including load.
What is the legal gross weight in Missouri?
The legal gross weight in Missouri is 80,000 lb. A heavier truck needs an overweight permit.
When are pilot or escort vehicles required in Missouri?
Over 12'6"-14' wide: 1 front on two-lane, 1 rear on other highways; over 14'-16': front and rear on two-lane/undivided, rear on divided; over 16'-18': front and rear everywhere plus extra front and police on two-lane; over 18': front, rear and police everywhere; 110'-125' long: rear escort except on divided highways; over 125': rear escort on all highways; over 15'6" high: front height-pole escort.
Can oversize loads travel at night or on weekends in Missouri?
Oversize loads: 1/2 hr before sunrise to 1/2 hr after sunset; night moves allowed up to 12'6" wide and 110' long at legal height; weekends allowed up to 16' wide; overweight-only loads may move continuously; holiday restriction periods start at noon and end 30 min before sunrise.
How much does a Missouri oversize permit cost?
Permits Canada charges $40 to $50 CAD per permit, plus the Missouri 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