Permits Canada obtains oversize and overweight permits for New Hampshire for trucks and loads over the legal width, height, length or weight.
New Hampshire legal dimensions and weight
A truck and load within these limits needs no oversize or overweight permit in New Hampshire.
| Width | 102 in (8 ft 6 in) |
|---|---|
| Height | 13 ft 6 in |
| Length | 53 ft semitrailer (over 48 ft limited to interstate/designated highways) |
| Gross weight | 80,000 lb for 5+ axle tractor-semitrailer (bridge formula applies) |
New Hampshire oversize permit rules
| Permits offered | Single trip, annual, annual supplemental, emergency |
|---|---|
| Escorts | 1 non-police escort at 12 ft wide, 90 ft long, over 14 ft high or 15 ft overhang; 1 state police escort at 100 ft long; 2 state police escorts over 14 ft wide |
| Travel times | Daylight only; no travel on weekends or listed holidays (except supermoves and some building moves) |
Single-trip permits are valid 5 business days (10 for a round trip by reverse route).
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 New Hampshire 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 New Hampshire state fee, which depends on the dimensions, weight and route.
Also need temporary registration or fuel tax coverage? See New Hampshire trip & fuel permits.
New Hampshire oversize permit questions
When is an oversize permit required in New Hampshire?
When the truck or load exceeds the New Hampshire legal limits: width 102 in (8 ft 6 in), height 13 ft 6 in, length 53 ft semitrailer (over 48 ft limited to interstate/designated highways).
What is the legal gross weight in New Hampshire?
The legal gross weight in New Hampshire is 80,000 lb for 5+ axle tractor-semitrailer (bridge formula applies). A heavier truck needs an overweight permit.
When are pilot or escort vehicles required in New Hampshire?
1 non-police escort at 12 ft wide, 90 ft long, over 14 ft high or 15 ft overhang; 1 state police escort at 100 ft long; 2 state police escorts over 14 ft wide.
Can oversize loads travel at night or on weekends in New Hampshire?
Daylight only; no travel on weekends or listed holidays (except supermoves and some building moves).
How much does a New Hampshire oversize permit cost?
Permits Canada charges $40 to $50 CAD per permit, plus the New Hampshire 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