Oklahoma oversize load permits
Oklahoma allows 14'0" unpermitted, which 20 states do. The other 26 cap at 13'6" — so a 14-foot load legal here needs a permit the moment it crosses into most of them.
Oklahoma 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 Oklahoma and the load needs a permit. No overall cap on a truck-tractor and semitrailer — the semitrailer is the only length trigger, and it is measured with any rear extension inside it, so a 54' trailer with a 6' tail measures 60' and needs a permit. The permit-free trailer limit is 59'6" on the national network plus 5 miles of reasonable access by the most direct route, which is longer than most states allow — a stretched 57' trailer that needs a permit in Nevada crosses Oklahoma's network without one. Off the network it drops to 53'. The 110' figure is the Annual Envelope permit product's ceiling, not a legal limit. Lose the tractor-semitrailer configuration and a cap applies: 70' for any other combination, 45' for a single truck, and doubles are capped at 53' per unit with no 59'6" allowance. Permigo files it for a flat $20, with the state's own fee billed at cost.
Oklahoma publishes no separate overhang cap, but the tail is still capped — the 59'6" trailer figure above is measured with the load on it, so a rear overhang spends the trailer’s remainder rather than sitting outside it. A 53' trailer gets 6'6"; a full 59'6" trailer gets none. Marking rules still apply.
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
| Situation | Window |
|---|---|
| Oversize (any over-dimension) | Daylight only: ½ hr before sunrise → ½ hr after sunset; night endorsement possible 'for good cause' |
| Overweight-only, legal dims | Continuous 24/7 (carve-out) |
| OKC / Tulsa / Cleveland Co. Interstates | Curfew 7:00–9:00 AM + 3:30–6:30 PM Mon–Fri; I-35 Exits 106–108 exempt; OW-only, special combos, LCVs exempt |
| Weekends | Unrestricted (houses/buildings only: no Sat/Sun moves, 5-21) |
| Holidays — banned at any time | New Year's Day, Memorial Day, July 4, Labor Day, Thanksgiving, Christmas — fixed dates, no observance shifts; applies to OW-only too |
| Holidays — explicitly allowed | MLK Day, Presidents Day, Veterans Day |
| Overheight special permit | Exempt from the daylight rule and the holiday ban; local roads only |
| Hazardous weather | Mandatory shutdown |
Travel restrictions
Other published tables
Length — when is a permit needed?
| Configuration | Permit trigger |
|---|---|
| Truck-tractor + semitrailer (incl. jeep/booster lowboys) | Never by overall length — the semitrailer is the trigger, measured 'from the front of the trailer to the rear of the trailer or any extension of the load beyond the rear' — i.e. trailer + rear tail only; load extending forward over the tractor does not count into this measure. Measured ≤53': legal everywhere. 53'–59'6" measured: permit-free on the National Network + 5-mile access (e.g. a 53' trailer + 6'6" tail, or a 48' trailer + 11'6" rear tail, both = 59'6", both NN-free; 59'6" exactly is inclusive) — but off-NN that same rig needs the round-trip overlength permit. Over 59'6" measured: permit everywhere |
| Where the 59'6" allowance applies | National network only, plus 5 miles of 'reasonable access' — measured by the most direct route of travel, not a radius. The NN = the Interstates + the US-DOT-designated US/state routes. ODOT may also treat a two-lane gap of ≤15 miles between four-lane NN segments as access, for direct travel between them only. everywhere else a trailer measuring over 53' needs the round-trip overlength permit. |
| Any other combination (truck + trailer, etc) | >70' overall — 'no other combination of vehicles shall have an overall length, inclusive of front and rear bumpers, in excess of seventy feet on all roads and highways' |
| Single truck | >45' overall — 'No single truck, with or without load, shall have an overall length, inclusive of front and rear bumpers, in excess of forty-five feet' |
| Doubles / triples | Hard per-unit cap 53' — 'No permit may be issued for any such combination in which a semi-trailer or trailer exceeds 53 feet': the 59'6" NN allowance never applies to doubles; cargo units cap at 110' combined, Interstate + 4-lane-divided only; triples 29' units / >95' cargo prohibited; heaviest trailer first, empty never precedes loaded |
| Does overhang count? | Yes — twice: rear load extension counts into the measured trailer length (including any appendages) — this is the TT-semi permit trigger (a 53' trailer + 12' tail measures 65' → permit required everywhere); overhang extends overall length for the 70'/45' caps and the escort bands. No fixed overhang limit exists (repealed); ≥4' rear = flags (1 flag if the projection is ≤2' wide, 2 flags if wider); unitized single-unit vehicles: front+rear protrusions summed over ⅔ of wheelbase → annual oversize permit only, counterbalanced, luminous tape |
| Escorts by length (any permit type) | >90' = 1 front on two-lane (TT-semi) / two-lane + super-2 (other combos); >100' = front + rear on two-lane/super-2; no length escort on multilane or Interstate at any length (docket 25-1024 merged the classes at >90') |
| Permit-product ceilings | single-trip: no length maximum; multi-trip: 80'; Annual Envelope: 110' — wind-blade variant 160' cargo |
Routine OW permit — the OL-1 axle ladder
| Axle group | Max weight (minimum spacing) |
|---|---|
| Steer | 15,000 lb — with ≥15'0" steer → first drive axle |
| Fixed single axle (permit ceiling) | 20,000 lb / 600 lb-per-inch of tire tread, whichever is less — an OW permit cannot issue above it |
| Liftable / retractable axle | max 8,000 lb (or the manufacturer's rating if less) and 240 lb-per-inch tire — drop axles barely count |
| Single | 20,000 lb |
| Tandem | 40,000 lb at ≥4'3" spacing / 39,000 lb at 4'0" |
| Tridem | 60,000 lb at ≥4'3" spacings / 57,000 lb at 4'0" |
| Quad | 46,000–59,000 lb by spacing (typ. 48,000 at 4'3"; the industry-circulated '65,000' is a 6-axle group figure) |
| Larger groups | per OL-1 sheet (5–14 axle configs; e.g. 85,000 lb 7-axle trailer group at 4'3") |
| Config gross ceiling | 209,000 lb — exceeding any OL-1 config = superload |
| Ground rules | On the OL-1 form: spacings 'are minimums and may be increased', group weights 'are maximums and may not be exceeded by any tolerance'; green routes on the Special Overweight Truck Permit Route Map only; 'travel on Oklahoma turnpikes must be approved by the Oklahoma Turnpike Authority' |
Primary source: ODOT — size and weight permits ↗
Every figure on this page was checked against it on August 4, 2026.
Get Oklahoma priced and filed
Send the route and a permit agent calls you back with Oklahoma’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 Oklahoma
Limits change at the line. One order covers every state on your route.
Oklahoma oversize permits, answered
Do I need an oversize permit in Oklahoma?
You need a permit in Oklahoma once the load exceeds any one of these: 8'6" wide, 14'0" high, or 80,000 lb gross. There is no overall length cap on a normal tractor-semitrailer — the semitrailer is capped at 59'6" on the national network, or 53' off it, measured with any rear overhang inside it. Axle limits apply too — 20,000 lb on a single axle and 34,000 lb on a tandem.
When does Oklahoma require an escort?
Oklahoma 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 Oklahoma?
Daylight hours only. There is no general weekend blackout. Holiday movement is restricted.
What counts as a superload in Oklahoma?
A load over 209,000 lb is handled as a superload in Oklahoma.
How much does an Oklahoma oversize permit cost?
Permigo charges a flat $20 service fee per state permit. Oklahoma'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 Oklahoma permit?
Moving above Oklahoma'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 Oklahoma 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 Oklahoma 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 Oklahoma 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 Oklahoma itself charges is on the cost guide.
Is an Oklahoma oversize permit the same as an Oklahoma truck permit?
No. A "truck permit" usually means the paperwork a truck needs to cross Oklahoma 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 Oklahoma'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 Oklahoma?
$20 flat per state permit, the state's fee at cost. A permit agent answers, 7am–7pm CT.