Montana Shed Moving Permit Rules
In Montana, a shed on a trailer needs an oversize permit once it exceeds 8'6" wide or 14'6" tall. Permits come from the Montana DOT and typically cost $10–$100 for a single trip.
| Maximum legal width without a permit | 8'6" |
|---|---|
| Maximum legal height without a permit | 14'6" |
| Issuing agency | Montana DOT |
| Typical single-trip permit fee | $10–$100 |
| Escort / pilot car requirement | Pilot car required above 14' wide on most state routes. |
| Route conditions to plan for | long mountain hauls and frequent wildlife crossings |
What this means for your move
Most 10-, 12-, and 14-foot-wide portable buildings exceed the 8'6" legal width in Montana, so a permit is required for nearly any move on public roads. An 8-foot-wide shed usually travels permit-free as long as trailer deck height keeps the total under 14'6".
Plan the route around long mountain hauls and frequent wildlife crossings. Pilot car required above 14' wide on most state routes. Escort vehicles are billed per mile and are typically the largest add-on cost after the haul itself.
Professional shed haulers usually carry annual blanket permits, which removes the per-trip paperwork for the homeowner entirely.
Montana permit FAQs
Do I need a permit to move a shed in Montana?
Yes, if the loaded shed exceeds 8'6" wide or 14'6" tall you need an oversize permit from the Montana DOT. Single-trip permits typically run $10–$100.
Who issues oversize shed permits in Montana?
Montana DOT issues state oversize/overweight permits. Cities and counties may require additional local permits for moves on municipal streets.
Are escort vehicles required in Montana?
Pilot car required above 14' wide on most state routes.
Shed movers in Montana
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Compiled from Montana DOT publications. Confirm current limits with the agency before dispatching a load.