Kansas oversize permit requirements
Kansas is the easiest state on the central corridor to move an oversize load through, and it is worth understanding why, because the reasons are not accidental. The state is flat, the grid is dense, and I-70 and I-35 carry a great deal of freight that has no interest in stopping. Kansas has responded by removing friction rather than adding it.
Start with the holidays. Almost every state on this corridor closes to oversize movement on the major holidays; Kansas does not. Daylight travel runs seven days a week and holidays included, which means a Thanksgiving-week delivery that would sit parked in Alabama or Georgia keeps moving here. Overweight-only loads face no hour restriction at all.
Then the permit. Seven days, and — unusually — it can be obtained at a Port of Entry rather than only in advance. Most states in the region insist the permit exists before the load crosses the line. Kansas will sell you one at the border. That is not an invitation to plan badly, but it is a genuine safety net on a re-routed or extended trip, and it is the kind of thing worth knowing at two in the morning.
The routine ceilings are high too: a hundred and twenty-six feet of length, sixteen feet six of width and eighteen feet of height, with utility notification required above seventeen. Best of all is the exemption that carriers of fabricated steel should have pinned to the wall — poles, beams, steel pipes and construction steel may run up to eighty-five feet overall with no permit at all, provided the movement is in daylight and the trailer itself stays within fifty-nine feet six. Two qualifications on the good news: the Kansas Turnpike is a separate authority with its own permit desk and its own phone number, and legal gross weight is higher off the Interstate than on it, which is the reverse of what most people assume.
Legal dimensions
At or under these figures, no oversize permit is required in Kansas.
- Width
- 8′6″
- Height
- 14′0″
- Gross weight
- 80,000 lb
- Overhang
- Governed by the 85′ overall limit rather than published separately
- Single axle
- 20,000 lb
- Tandem
- 34,000 lb
- Tridem
- 42,000 lb
Routine permit limits
Above legal dimensions and up to these figures, Kansas issues a permit as routine business. Beyond them the load becomes a superload, reviewed case by case.
- Length
- 126′
- Width
- 16′6″
- Height
- 18′ — above 17′ the utilities must be notified
- Single axle
- 22,000 lb
- Tandem
- 45,000 lb
- Tridem
- 60,000 lb
- Quad
- 65,000 lb
Escort requirements
A load reaching any of these figures needs an escort in Kansas — the figure is the first size that requires one, so a load measuring exactly this much already needs it.
- Width
- 14′1″
- Height
- 15′0″
- Length
- 126′1″
When the load may move
Permit validity. Permits are valid for seven days, and may be obtained in advance or at a Port of Entry on the way in.
Operating time. Daylight — half an hour before sunrise to half an hour after sunset — seven days a week, holidays included. Overweight-only loads face no hour restriction.
Restricted travel. Kansas does not close to oversize movement on the major holidays, which sets it apart from every state around it.
Worth knowing
- Poles, beams, steel pipes and construction steel may run to 85′ overall with no permit, in daylight, provided the trailer itself stays within 59′6″.
- Legal trailer length is 59′6″ and legal overall length 85′.
- Legal gross weight rises to 85,500 lb off the Interstate.
- The Kansas Turnpike is a separate authority with its own permit requirements — a KDOT permit does not cover it.
Kansas permits, answered
Can an oversize load travel in Kansas on a holiday?
Yes. Kansas allows daylight movement seven days a week and holidays included, which is unusual on this corridor — the neighbouring states close.
Can I get a Kansas permit at the state line?
Yes. Kansas issues at Ports of Entry as well as in advance, so a re-routed trip is recoverable rather than stopped. Most states around it require the permit before entry.
Do steel and poles need a Kansas oversize permit?
Not up to 85′ overall. Poles, beams, steel pipes and construction steel are exempt at that length in daylight, provided the trailer itself is within 59′6″.
Does the Kansas Turnpike use the same permit?
No. The Turnpike is a separate authority with its own permit requirements, so a KDOT permit does not cover it. Both have to be arranged for a through route.
How tall can a load be on a Kansas routine permit?
18′, which is among the most generous routine height limits anywhere. Above 17′ the utilities have to be notified before the move.
Crossing more than Kansas?
A permit is per state. If the route leaves Kansas, these are the states it most likely enters.
Get a permit quote for Kansas
Enter the load once and the estimator prices every state on the route, flags where an escort is required, and turns the quote into an order.
Price a permit for Kansas →Compiled from published state DOT sources. Regulations change — confirm the current rules before dispatch. Last reviewed 2026-07-30.