The Big Rentals Guide to Towing an Enclosed Trailer in and around Salt Lake City, UT

Most enclosed-trailer guides talk about keeping two things out, rain and snow. In Salt Lake there is a third: dust. The climate is dry and the canyons throw fine grit at everything, so a sealed box here is not only weather protection, it is the difference between gear that arrives clean and gear that arrives coated. Add the high-altitude sun and the occasional spring snow, and the enclosed trailer earns its keep in three directions at once.

What the box asks in return is familiar: it is a tall, light sail on canyon wind, the grades work the brakes, and the dry air finds any gap in the seals. This guide covers the sizes that fit real Salt Lake loads, the Utah rules that apply the second you couple up, the canyons and the dry air to plan around, and where you can leave the trailer.

Why Salt Lake City Renters Choose Enclosed Trailers

Moves lead. Growth along the Wasatch Front keeps people moving, and an enclosed trailer gets furniture, boxes and electronics across the valley dry in a spring snow and clean of the dust that hangs in the dry air. Read more about when an enclosed trailer is worth the extra cost over an open one.

Gear headed to the mountains is the next draw, with bikes, ski and snowboard gear and valuable equipment riding enclosed to keep weather and road grime off them on the way up, and the region's trades keep tools, equipment and materials in a locked box that stays dry and secure. A good share of that cargo cycles into and out of storage on the season.

Whatever you are hauling, you will find trailer rentals across the Salt Lake City area from local owners near you.

Utah Towing Laws to Know

Brakes and breakaway

Utah requires brakes on all wheels and a breakaway at 3,000 lb, able to stop the trailer within 40 ft from 20 mph (Utah Code Title 41, Chapter 6a). A loaded enclosed trailer clears 3,000 lb, so brakes and a charged breakaway are a given, and they matter most on a canyon descent. Confirm them and your tow vehicle's controller, and check the gross vehicle weight rating (GVWR) before you book. Read more about what GVWR means and how to read it.

Secure the hidden load

Utah requires the load secured so nothing shifts. Inside a closed box that means strapping the load so it cannot move against the doors or walls, with the heavy items low and forward. On a grade, a load that shifts moves the whole trailer's balance, and because the walls hide it, you will not see the problem until you feel it. Read more about how to secure furniture and appliances in an enclosed trailer.

Speed, the Express Lanes and size

Utah sets no separate towing speed limit, so the posted number applies, but on the canyons the grade sets your real speed well below the sign. A trailer cannot use the I-15 Express Lanes even when you are carpooling, because they bar trailers and vehicles over 18,000 lb gross, and a trailer cannot run in the leftmost general lane on a freeway with three or more lanes in one direction, so keep right. Width is capped at 8 ft 6 in, height at a generous 14 ft, and a standard license covers the haul.

Where you can leave it

Salt Lake City bars storing a motor home, boat, trailer or semi cab on a street for more than 48 hours, and moving it within 24 hours on the same block face counts as continuous parking, so you cannot reset the clock by nudging it down the street (City Code § 12.56.525). Plan to stage an enclosed trailer on private property rather than leaving it at the curb.

Matching Trailer to Load

Sizing

Common enclosed sizes run from 5x8 up to 8.5x24. A 5x8 to 6x12 handles small moves and gear; a 7x14 to 8.5x24 covers full moves and large equipment. Interior height is the dimension people forget until a tall item will not stand up, so measure the tall things. Read more about choosing the right enclosed trailer size for your load.

Hitch and tracking

Match the coupler to your ball size, confirm the brake controller, and set the trailer up balanced so a tall box tracks straight instead of wandering, which also steadies it in canyon wind.

Balance and altitude

Aim for 10% to 15% of the load weight on the tongue, and load heavy items low and forward so the walls are not hiding a sway. Thin air also cuts the tow vehicle's power, so leave margin on a load you will take up a canyon, because the rig that felt strong in the valley has less to give on the climb.

A tall box, and seal it against the dust

An enclosed trailer is the tallest thing in this guide, which matters two ways here. First, that height is a sail, and the Point of the Mountain and the canyon mouths funnel strong, sudden wind that shoves a tall box around. Second, the dry climate throws fine dust that works into any gap, so a sealed box is only as good as its gaskets. Confirm the doors seal before you load anything dust-sensitive, and keep that gear away from the door edges.

Canyons, Dry Air and the Grades

The box catches wind

A tall, light box catches crosswind on I-80, on the open valley stretches and at the canyon mouths, and a gust hits harder on snow or ice. Slow down and leave far more stopping room than the dry-valley version of the trip.

Down the grade

Gravity plus a tall loaded box fades brakes on a long canyon descent, so downshift and let the engine hold your speed rather than riding the pedal, watch for the runaway-truck ramps, and recheck the load before the descent so nothing shifts once you are committed.

Dust and the seals

The dry air is relentless on a long haul or a dirt-road approach to a trailhead or job site. A good set of door seals keeps it out; a worn set lets a fine film settle on everything, so check the gaskets and, for truly sensitive gear, bag or box it inside the trailer as a second layer.

Winter and where to leave it

Utah posts traction and chain requirements on the canyon roads in winter, so check UDOT before you head up and do not take a tall box over a pass in a storm. And because § 12.56.525 limits a trailer to 48 hours on the street, stage on private property rather than the curb.

Insurance and Damage Protection

What about insurance and damage protection?

Before towing a rented trailer, contact your auto insurance provider to ask whether your policy covers liability and towing-related damage claims.

Eligible rentals booked through Big Rentals also include Basic Rental Protection at checkout. This added protection can help limit your financial responsibility for certain damage or theft events during the rental period.

For full details on how Basic Rental Protection works, including deductibles, exclusions, and renter responsibilities, review our FAQ and platform terms.

Ready To Book?

Get the size right, confirm brakes and a breakaway, secure the hidden load, check the seals against the dust, and respect the box in canyon wind and on the descents. Do that and an enclosed trailer is the most reliable way to move cargo across the valley and up to the mountains clean and dry. When you are ready, browse enclosed trailer rentals in Salt Lake City from local owners near you.

The Short Version

• Enclosed trailers are Salt Lake's choice for weather-and-dust-proof moves, mountain-bound gear and trade equipment that cannot ride open.
• A loaded enclosed trailer is over Utah's 3,000 lb threshold, so all-wheel brakes and a battery breakaway are a given (Title 41, Chapter 6a).
• Secure the hidden load so it cannot shift against the doors, especially on a grade.
• No separate towing speed limit, so the grade sets your real speed; a trailer cannot use the I-15 Express Lanes or the leftmost general lane, so keep right.
• The tall box is a sail at the canyon mouths and the Point of the Mountain, so slow down, and the dry air finds any gap, so check the door seals against dust.
• Check UDOT for traction and chain requirements in winter, and because Salt Lake City limits a trailer to 48 hours on the street (§ 12.56.525), stage on private property. Keep 10% to 15% of the weight on the tongue.