In Oklahoma, any load that exceeds the legal size or weight limits requires an oversize/overweight permit before it moves. Below are the legal limits and the requirements that apply at each threshold.
1When you need a permit
A load is oversize or overweight once it passes any of these:
| Dimension | Oklahoma legal limit | Permit if over |
|---|---|---|
| Width | 8 ft 6 in | Wider |
| Height | 13 ft 6 in | Taller |
| Length (combination) | 75 ft | Longer |
| Gross weight | 80,000 lbs | Heavier |
| Single axle | 20,000 lbs | Heavier |
| Tandem axle | 34,000 lbs | Heavier |
Oklahoma sets no general front-overhang allowance — freight ahead of the trailer counts toward its length limits.
2Escort & pilot car requirements
| Once the load is over… | Oklahoma requires |
|---|---|
| 12 ft wide | 1 escort (pilot car) |
| 14 ft wide | 2 escorts |
| 15 ft 9 in high | Escort with a height pole / pole car |
| 90 ft long | 1 escort · 100 ft → 2 escorts |
3When you can travel
- Daylight only — 30 minutes before sunrise to 30 minutes after sunset.
- Weekends: Weekend travel is allowed.
- No continuous travel for oversize beyond envelope; OW-only may be allowed per permit specifics..
- Holiday blackouts: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day.
5Permit timing
- Superload review: ~5 days.
- Validity: a single-trip permit is good for ~5 days.
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?Oklahoma permit FAQ
When do I need an oversize permit in Oklahoma?
Once a load exceeds any legal limit: 8 ft 6 in wide, 13 ft 6 in high, 75 ft long (combination), or 80,000 lbs gross.
When do I need a pilot car in Oklahoma?
Oklahoma requires one escort over 12 ft wide (two over 14 ft), and a height pole over 15 ft 9 in high.
Can you drive an oversize load at night in Oklahoma?
Daylight only, 30 minutes before sunrise to 30 minutes after sunset. No continuous travel for oversize beyond envelope; OW-only may be allowed per permit specifics. Weekend travel is allowed within limits.
How much does a Oklahoma oversize permit cost?
The state permit fee depends on the load's size and weight. The full cost of a move also includes escorts, police, route surveys, engineering, and the truck rate, which vary by route. FreightDeck estimates all of it for your exact load — price your Oklahoma load with FreightDeck →.
How long does it take to get an oversize permit in Oklahoma?
Oklahoma does not publish a standard processing time for routine permits; superload review takes about 5 days. A permit is valid for 5 days, so line up every state on the route before applying.
Can oversize loads move on weekends and holidays in Oklahoma?
Weekend travel is allowed. Movement stops on New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day (Holiday day only ('at any time on the following holidays'); no noon-before window. Movement allowed on MLK Day, Presidents Day and Veterans Day. Over-height special permits are exempt from the holiday ban (47 O.S. 14-103(B)(1)).); check the permit conditions for exact times.
How much overhang is allowed in Oklahoma?
Oklahoma sets no general front-overhang allowance — freight ahead of the trailer counts toward its length limits.
Are any loads exempt from oversize permits in Oklahoma?
Oklahoma publishes exemptions or relaxed rules for farm equipment, and owner-hauled round baled hay <=11 ft (for example not on interstate highways. may move at night with lighting per 47 o.s. 12-215; tractors pulling machinery over 13 ft wide need two amber flashing lamps at least 39 in high. size exemption only; overweight needs a no-cost annual permit for owners and retail implement dealers. no farm-to-farm limit in statute). Exemptions are narrow and usually limited to specific roads and daylight hours; anything else over the legal limits needs a permit.
Does a Oklahoma permit cover Kansas?
No. Every state issues its own permit, and a move crossing into Kansas, Missouri, or Arkansas needs a separate permit there with that state's escort and travel rules. FreightDeck prices every state on the route in one quote.