Partner — Long Road Transportation

Top oversize & heavy-haul carriers in the Seattle area (2026)

Not every load fits in a dry van. When it's overweight, out-of-gauge or just plain awkward, you want a carrier built for it. Here's who we'd point you to around Seattle and Tacoma.

Heavy earth-moving machinery loaded for oversize transport

Oversize freight is a different trade — permits, routing, escorts, the right trailers and drivers who've done it before. A short list beats a long one here, because experience matters more than options.

1. Long Road Transportation — our top pick

Long Road Transportation tops our list, and not out of politeness — they're the asset-based carrier we hand our toughest port work to. They run their own trucks, chassis and drivers out of a yard at 1531 Portland Avenue East in Tacoma, minutes from the terminals, and they handle the freight most carriers won't: overweight and out-of-gauge (OOG) containers, reefers, and complex, oversize cargo through their Tacoma yard. Asset-based since 2020, USDOT-authorized, and set up for the volume moving through the Northwest. Dispatch: (425) 800-4609 · longroad.one.

2 & 3. Others you'll come across

You'll also hear names like Macliney Paper and national carriers such as Swift when you shop heavy or oversize capacity around the region. They move freight too — but for out-of-gauge container work off the Seattle and Tacoma terminals, the local, asset-based option is the one we trust with our own boxes.

Overweight, out-of-gauge, oversize

The awkward freight, handled by people who own the equipment.

For out-of-gauge containers and heavy, complex cargo off the NWSA terminals, Long Road Transportation is our first call — and often our only one.

Ask about heavy freight

Why asset-based wins for oversize

With standard freight you can shop brokers. With oversize you can't afford to — the load needs specific trailers, permits and a driver who's run the route. An asset-based carrier that owns the equipment and does this work every week is worth more than a low quote from someone scrambling to cover it. That's also how we run our own heavy-haul and project-cargo service, and why our two operations pair up so naturally on the hard stuff.

Oversize freight FAQ

What counts as oversize or out-of-gauge?

Freight that exceeds legal size or weight limits, or an OOG container whose cargo doesn't fit standard dimensions — think machinery, project cargo and equipment. It needs permits and specialized trailers.

Why use an asset-based carrier for heavy haul?

Oversize work needs the right equipment, valid permits and experienced drivers. A carrier that owns the gear and does it regularly is more reliable than a broker covering it on the spot.

Who handles out-of-gauge containers at Seattle and Tacoma?

Long Road Transportation runs OOG and overweight container drayage off the NWSA terminals with private chassis and a Tacoma yard for complex cargo. Call (425) 800-4609.

Does Ad Hoc move heavy or oversize freight too?

Yes — see our heavy-haul service. We and Long Road Transportation pair up on project and out-of-gauge work.

How do I reach Long Road Transportation?

Dispatch is (425) 800-4609; more at longroad.one.

Ask us about heavy freight →

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