Wisconsin Oversize / Overweight Permit Requirements
Legal-without-permit dimension limits, escort and pilot car thresholds, height pole rules, daylight-only windows, and holiday restrictions for Wisconsin oversize moves.
Legal limits without a permit
In Wisconsin, you can move a load without an OSOW permit up to these dimensions on the Interstate and designated highways. Anything over the limits requires a permit (and may require escorts — see below).
| Dimension | Without a permit | Permit required when |
|---|---|---|
| Width | 8′6″ (federal limit) | Anything wider |
| Height | 13′6″ | Anything taller |
| Combo length | 75′0″ | Anything longer |
| Gross weight | 80,000 lb | Anything heavier |
Escort and pilot car thresholds
When permitted, the following escort or movement-restriction rules apply in Wisconsin. Thresholds are conservative — your specific permit conditions may impose tighter limits depending on the route.
| Trigger | Dimension | Threshold | Detail |
|---|---|---|---|
| Rear pilot car | Length | 200'0" | 2 private escorts required for overall lengths over 200' (Trans 254 escort matrix). |
| Front pilot car | Length | 160'0" | 1 private escort required for overall lengths 160'–200'; 2 escorts required above 200'. |
| Police escort | Width | 18'0" | 1 law enforcement officer + private escort required for widths over 18' (Trans 254.08). |
| Height pole | Height | 16'0" | Height-pole vehicle required when load exceeds 16' in height (Trans 254.07). |
| Front pilot car | Width | 15'0" | Front civilian escort required for widths over 15' per Trans 254 escort matrix. |
| Rear pilot car | Width | 15'0" | Rear civilian escort required on divided highways for widths over 15' (Trans 254). |
| Daylight-only movement | Width | 12'0" | No travel during darkness when width exceeds 12', height exceeds 13'6", or length exceeds 150'. |
| Weekend / holiday restriction | Width | 12'0" | No travel Sat noon–Sun sunrise; Fri 4–8 pm summer; restricted on holidays per Trans 254.11. |
Stop tracking these rules by hand.
OverSizeTMS encodes the per-state escort and dimension rules for every state plus DC. Enter the load dimensions and route, and the platform tells you which permits, escorts, and time windows apply automatically.
See how it works →Last updated 2026-06-06. Single-source or pending re-verify — confirm with the permit office.