New Hampshire oversize load permits
New Hampshire caps at 13'6", the federal baseline and the limit in 26 states. 20 states allow 14'0" and two allow 14'6", so a load that ran legally elsewhere can be over-height here.
New Hampshire permit requirements
The same seven sections for every state, so two states can be compared without re-learning the layout.
Permit required above
Exceed any one of these in New Hampshire and the load needs a permit. No overall combination cap — New Hampshire's law is per-unit: 53' trailer, 45' single vehicle. A trailer longer than 53' re-activates the state's 65' overall cap. Permigo files it for a flat $20, with the state's own fee billed at cost.
Rear overhang is capped at 4'. Exceed it and New Hampshire requires a permit.
Filed from Houston, TX. A permit agent answers +1 (786) 494-6912, 7am–7pm CT, 7 days; no card needed for a quote.
Axle limits
Escorts by road type
Police escort required at the thresholds marked above.
Superload above
Allow about 30 business days for review.
Movement windows
| Situation | Window |
|---|---|
| Oversize (incl. OS+OW) | ½ hr before sunrise → ½ hr after sunset, weekdays only |
| Overweight-only (normal speeds) | Unrestricted — no daylight, weekend, or holiday limits |
| Weekends (OS) | invalid both days — except supermoves + >12'-wide building moves |
| Saturday seasonal 2026 | designated routes: sunrise−30 min → 12:00 PM, Apr 18–Nov 21; I-95 only to 9:00 AM May 30–Aug 29; never on holiday weekends |
| Night moves | NHSP escort required, 48-hour notice (portal notice) |
| Supermoves | any time of day, weekday or weekend, as the permit specifies |
| Holidays 2026 (OS) | Jan 1 · Jan 19 · Feb 16 · May 25 · Jul 3 · Sep 7 · Oct 12 · Nov 11 · Nov 26–27 · Dec 25 (Sun holiday→Mon, Sat→Fri; Juneteenth unrestricted) |
| Weather | no movement in inclement weather — exit at the first available location |
| Spring thaw | posted sections: 30,000 lb gross or tire-inches ×300, whichever less (RSA 236:3-a) |
| Validity | 5 business days; 10 for round-trip reverse route |
Travel restrictions
Other published tables
No additional tables published for this state.
Primary source: NHDOT — oversize/overweight permits ↗
Every figure on this page was checked against it on August 4, 2026.
Get New Hampshire priced and filed
Send the route and a permit agent calls you back with New Hampshire’s fee, any other state on the way, and one total. Filed from Houston, TX; we answer +1 (786) 494-6912, 7am–7pm CT, 7 days.
Already know the load? Start an order in FleetLynk, the filing app behind Permigo — or send the form and we set it up for you.
States that border New Hampshire
Limits change at the line. One order covers every state on your route.
New Hampshire oversize permits, answered
Do I need an oversize permit in New Hampshire?
You need a permit in New Hampshire once the load exceeds any one of these: 8'6" wide, 13'6" high, or 80,000 lb gross. There is no overall length cap on a normal tractor-semitrailer — the trailer itself is capped at 53' instead. Axle limits apply too — 20,000 lb on a single axle and 34,000 lb on a tandem.
When does New Hampshire require an escort?
New Hampshire requires no escort below 12' wide. Above that the requirement depends on the road type as well as the dimension, which is why the same load can need a front escort on a two-lane and a rear escort on a multilane.
Can I move an oversize load at night in New Hampshire?
Daylight hours only. Weekend restrictions apply. Holiday movement is restricted.
What counts as a superload in New Hampshire?
A load over 15' wide, over 13'6" high, over 110' long, over 150,000 lb is handled as a superload in New Hampshire. Allow about 30 business days for review.
How much does a New Hampshire oversize permit cost?
Permigo charges a flat $20 service fee per state permit. New Hampshire's own permit fee is billed at cost on the same invoice, itemised, with nothing added. Call +1 (786) 494-6912 and we will price your exact route.
What happens if I move without a New Hampshire permit?
Moving above New Hampshire's limits without a permit is a violation, not a paperwork gap. The load can be stopped at a scale or by a trooper and held until a permit is issued, the fine is set by New Hampshire and the citing officer, and a pattern of violations follows the carrier's safety record. If you are not sure the load needs one, when you need an oversize permit walks through the triggers.
Which kind of New Hampshire permit do I need?
Most moves take a single-trip permit: one load, one route, a set number of days. Many states also sell annual or blanket permits for loads that stay within routine dimensions; whether New Hampshire does, and for which loads, is on the state's own permit page. A superload is permitted separately and reviewed by the state — the thresholds are in the answer above. Permigo files whichever kind the load needs at the same $20 flat fee; what New Hampshire itself charges is on the cost guide.
Is a New Hampshire oversize permit the same as a New Hampshire truck permit?
No. A "truck permit" usually means the paperwork a truck needs to cross New Hampshire at all — a trip permit, a fuel permit (IFTA) or IRP plates — which the state's motor-carrier office issues. An oversize or overweight permit covers one load that exceeds New Hampshire's legal size or weight, and that is what Permigo files.
Also useful: when you need a permit, pilot car requirements by state, and the interactive map of all 48 states.
Moving through New Hampshire?
$20 flat per state permit, the state's fee at cost. A permit agent answers, 7am–7pm CT.