Iowa oversize load permits
Iowa 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.
Iowa 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 Iowa and the load needs a permit. No overall cap on a tractor-semitrailer — the 53' trailer governs, or 57' for a lowboy used exclusively to haul construction equipment. Truck-and-trailer combinations cap at 65'. A trailer longer than 53' re-activates the state's 75' overall cap. Permigo files it for a flat $20, with the state's own fee billed at cost.
Front overhang is capped at 3'. Exceed it and Iowa 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 at the state’s discretion.
Superload above
No separate superload class published — the permit thresholds above govern.
Movement windows
| Load | Window |
|---|---|
| All permit moves (default) | daylight ±30 min, 7 days |
| Night-qualified loads | 24/7: ≤12'W · ≤14'6"H · ≤100'L · legal axles (OW-gross on legal axles qualifies), roads ≥22' wide w/ ≥11' lanes, night lighting |
| 3 holidays only | Memorial, Independence, Labor Day: no movement on the day, after noon the day before, and through the holiday weekend when it falls Fri–Mon (no Thanksgiving/Christmas/New Year blackout — aggregators overstate) |
| Weekends | open outside holiday weekends |
| Weather | roads clear of ice/snow + visibility ≥¼ mile |
Travel restrictions
Other published tables
No additional tables published for this state.
Primary source: Iowa DOT — oversize/overweight permits ↗
Every figure on this page was checked against it on August 4, 2026.
Get Iowa priced and filed
Send the route and a permit agent calls you back with Iowa’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 Iowa
Limits change at the line. One order covers every state on your route.
Iowa oversize permits, answered
Do I need an oversize permit in Iowa?
You need a permit in Iowa 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 Iowa require an escort?
Iowa 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 Iowa?
Daylight only above 12' wide. There is no general weekend blackout. Holiday movement is restricted.
What counts as a superload in Iowa?
Iowa publishes no separate superload class — the permit thresholds above govern, and anything beyond them goes to engineering review.
How much does an Iowa oversize permit cost?
Permigo charges a flat $20 service fee per state permit. Iowa'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 an Iowa permit?
Moving above Iowa'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 Iowa 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 Iowa 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 Iowa 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 Iowa itself charges is on the cost guide.
Is an Iowa oversize permit the same as an Iowa truck permit?
No. A "truck permit" usually means the paperwork a truck needs to cross Iowa 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 Iowa'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 Iowa?
$20 flat per state permit, the state's fee at cost. A permit agent answers, 7am–7pm CT.