The Big Rentals Guide to Towing an Equipment Trailer in and around Denver, CO

You might think that loading a machine onto an equipment trailer is the hardest part of getting one on the road, but that’s not the case.

In Denver, the hard part comes after, when the road tilts. A loaded equipment trailer is one of the heaviest things you'll tow, and this is the place where heavy meets steep — mountain grades that climb for miles, at an altitude that starts a mile up and only rises. The weight that makes the machine useful is the weight the grade punishes.

Overmatch your truck and thin air leaves you crawling up the grade with no power in reserve. Ride the brakes down the other side and you cook them. Bring a machine that's an inch too wide and you needed a permit you don't have. This guide covers the equipment trailers that match real Denver machines, the Colorado weight, speed and size rules that apply the second you couple up, and the grades and altitude that make an equipment trailer rental in Denver its own particular job.

Why Denver Renters Choose Equipment Trailers

The Front Range is building and clearing constantly, and a lot of that work is above the valley floor. Compact machines — skid steers, compact track loaders, mini excavators — move to job sites across the metro and up into the foothills for grading, excavation, driveway and road work on mountain and foothills properties. The equipment trailer is how the machine gets there, and here that often means up a grade. Read more about what trailer you need to haul a mini excavator.

Fire mitigation is the next big driver, and it's distinctly Colorado. Wildfire risk drives a steady stream of defensible-space and fuel-reduction work in the foothills and the wildland-urban interface — brush and tree clearing with skid-steer mulchers and mini excavators — and the machines that do it get hauled up to the properties that need it. The region's rock-heavy, water-wise landscaping runs on machines too, with skid steers moving stone and decomposed granite and mini excavators shaping grade. Read more about how to choose an equipment trailer by machine weight and width.

A lot of these machines are themselves rented for a weekend or a single job, and the trailer is what makes that possible without a delivery fee. You'll find trailer rentals across the Denver area from local owners near you.

Colorado Weight, Speed and Size Rules Every Equipment Renter Should Know

Weight: where your real limits are

Colorado's legal maximums are commercial numbers no renter approaches — 80,000 lb combined on interstates, a 20,000 lb single axle. Your binding limits are two others: the trailer's gross vehicle weight rating (GVWR) and your tow vehicle's tow and payload ratings. Add the machine's operating weight and its attachments together — a full bucket, a grapple or a mulcher adds real weight — and match that to both ratings with margin. Then factor altitude: thin air cuts engine power, so the truck that tows a machine fine at sea level has less in reserve here, especially on a grade. One line to know: cross 26,000 lb combined and you're into commercial territory with port-of-entry clearance, so keep a pickup-and-machine rig under it. Read more about what GVWR means and how to read it.

Brakes and the breakaway

Colorado requires brakes on all wheels and a battery-powered breakaway at 3,000 lb (CRS 42-4-223), and a loaded equipment trailer is always past that. Confirm the brakes, the breakaway and its battery, and your tow vehicle's brake controller — the breakaway battery is exactly what a State Patrol stop checks, and the brakes are what save you on a descent.

Speed: no separate cap, but the grade sets it

Colorado doesn't set a lower speed limit for towing, so the posted limit applies. On the mountain corridors that's beside the point — watch for posted downgrade and truck speed limits, and know that a heavy machine holds you well under the limit on a climb and should on a descent too. The rule that matters on a grade isn't a number on a sign, it's the gear you're in.

Size: the width line a machine can hit

Legal width is 8 ft 6 in, and that's the one a compact machine can actually cross — a wide skid steer or a machine with an attachment can push past 8 ft 6 in and need a CDOT oversize permit, so measure the machine, not just the trailer. Height is a generous 14 ft 6 in and combination length runs to 70 ft, both well clear for a machine on a trailer, and rear overhang is capped at 10 ft, which a long machine or boom can approach. Read more about when your equipment trailer needs an oversize load permit.

Matching an Equipment Trailer to Your Machine

Start from the machine and its attachments

The machine's operating weight plus its attachments sets the trailer you need, so match the weight rating with margin — and remember margin matters more at altitude, where your truck has less to give. Read more about how to load and secure equipment on an equipment trailer.

Deck height, dovetail and ramps

A lower deck and a dovetail flatten the ramp angle so a low machine loads without high-centering. Match the ramp to the machine, because a tracked mini excavator, a wheeled skid steer and a mulcher-equipped loader each load differently.

Securing the machine for a grade

Use chains and rated binders at four points to the machine's tie-down points, with the boom or bucket lowered and secured and any attachment secured separately. On Denver's grades this matters more than on the flat — a machine that shifts on a steep descent moves the whole trailer's balance. Recheck the tie-downs after the first few miles and again before a big descent.

Hitch, brake controller and weight distribution

Match the coupler and receiver to the loaded weight, confirm the brake controller, and place the machine for 10% to 15% tongue weight. Balance matters more when the road tilts.

The Grade, the Altitude and the Mountain Job Site

Up the grade in thin air

The work is often up — foothills and mountain properties reached by climbing grades on I-70 and the canyon roads. Going up, a loaded equipment trailer works the engine and cooling system hard, and thin air means the engine makes less power than it would at sea level, so a rig that felt strong in town can labor on a long climb. Plan a lighter load or a stronger truck for a mountain haul, keep your temperature gauge in view, and give faster traffic room to pass rather than forcing the pace.

Down the grade without cooking the brakes

The descent is where a heavy machine is most dangerous. Gravity plus the machine's weight works the brakes down a long, steep grade, and riding the pedal fades them fast. Downshift and let the engine hold your speed, watch for the runaway-truck ramps that exist because drivers learn this the hard way, and if you smell hot brakes, pull off and let them cool.

Loading and unloading on a slope

Mountain and foothills job sites are rarely flat, and a machine coming off the ramps onto a slope or soft ground needs a plan. Pick the flattest, firmest spot you can, unload with the grade in mind so the machine isn't fighting gravity as it rolls off, and keep everyone clear of its path.

Winter and traction

In winter, Colorado activates traction and chain requirements on I-70 and the mountain corridors, and a loaded equipment trailer on a snowy grade is not the place to be caught out. Check CDOT conditions before you head up, and don't haul a machine over a pass in a storm.

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?

Match the trailer to the machine plus its attachments, leave altitude margin on the tow vehicle, mind the 8 ft 6 in width, and downshift on the descents. Do that and an equipment trailer is the safest way to get a compact machine up to the job and back. When you're ready, browse equipment trailer rentals in Denver from local owners near you.

The Short Version

• Equipment trailers move Denver's compact machines — skid steers, compact track loaders and mini excavators — for construction, foothills and mountain-property work, fire mitigation and rock landscaping, and the haul is often up a grade.
• Your real weight limits are the trailer's GVWR and your tow vehicle's ratings, not Colorado's commercial maximums — and altitude cuts your truck's pulling power, so leave margin. Over 26,000 lb combined you're into commercial territory.
• Colorado requires all-wheel brakes and a battery-powered breakaway at 3,000 lb, which a machine always exceeds (CRS 42-4-223).
• There's no separate towing speed limit, but the grade sets your real speed — downshift on descents and watch the runaway ramps.
• Legal width is 8 ft 6 in; a wide machine or attachment can cross it and need an oversize permit, so measure the machine.
• Secure the machine at four points and the attachment separately, and unload with the slope in mind on mountain sites.