Renting a trailer for the first time: weight, hitch and brakes

Updated 2026-10-27 · TrailerRentalFinder editorial

Before you tow a rental trailer for the first time, check three things: weight, hitch and brakes. Look up your vehicle's tow rating in the owner's manual and make sure the loaded trailer stays under it. Match the hitch ball to the trailer's coupler and use hitch parts rated for the load. Then cross the safety chains, plug in and test the lights, and ask whether the trailer has its own brakes. On the road, drive at moderate speeds, leave extra room to stop and make wider turns.

Start with weight: what can your vehicle tow?

NHTSA's towing safety booklet, Towing a Trailer: Being Equipped for Safety (published in 2002), tells drivers to look up their vehicle's tow rating, which your owner's manual lists. Here is what the main terms mean:

Term	What it means
Tow rating	The trailer size, maximum loaded weight and maximum tongue weight your vehicle can handle
GVWR (Gross Vehicle Weight Rating)	How much your tow vehicle may weigh when fully loaded
GCWR (Gross Combination Weight Rating)	The allowed combined weight of the tow vehicle, trailer, passengers, equipment, fuel and so on
GAWR (Gross Axle Weight Rating)	How much weight a single axle can carry
Tongue weight	The part of the trailer's weight that presses down on the hitch

Go by the loaded weight. Some manufacturers list a "dry" or empty weight for trailers, but your cargo counts too. NHTSA says the best way to know a trailer's actual weight is to weigh it at a public scale. North Carolina's state towing guide notes that many trailers show weight information on a label or stamped into the trailer. Ask the rental counter for the trailer's empty weight and its maximum loaded weight, then add what you plan to haul.

This step matters most with heavy cargo, such as gravel in a dump trailer or a vehicle on a car hauler.

Match the hitch and ball to the trailer

A hitch setup has four parts: the receiver, the draw bar or ball mount, the hitch pins and the ball. North Carolina's guide says each part has its own maximum weight rating, and the whole assembly is only as strong as its weakest part. Hitches are also grouped into classes by the weight they can tow, but read the ratings on the parts themselves.

The ball must fit the trailer's coupler, the part at the end of the trailer tongue that the ball goes into and locks in place. There are four standard ball diameters: 1-7/8, 2, 2-5/16 and 3 inches. The ball's diameter and maximum weight are stamped on the ball. Wisconsin DOT says to check that the ball and coupler are the same size and latch securely before you drive.

NHTSA advises following the tow vehicle and trailer manufacturers' recommendations when choosing a hitch.

Safety chains and the breakaway cable

Safety chains are your backup if the coupler fails, and NHTSA notes that most states require them. Hook them up like this:

Cross the chains under the trailer tongue. If the trailer comes loose, crossed chains form a cradle that helps keep the tongue from dropping to the road.
Leave enough slack for sharp turns, but don't let the chains drag on the road.

A trailer with its own brakes may also have a breakaway switch on the tongue. It applies the trailer brakes if the trailer separates from the tow vehicle. Ask how to attach its cable.

Lights and wiring

NHTSA's guide notes that federal law requires trailers to have taillights, brake lights, side marker lights, turn signals, and side and rear reflectors. A plug connects them to your vehicle. NHTSA describes a four-way (or larger) connector, and many tow vehicle makers offer a 7-way connector. The signals on your vehicle's plug must match the trailer's.

NHTSA calls a failed trailer light connection a common problem and a serious safety hazard. Before you leave, have a helper stand behind the trailer while you test the running lights, brake lights, turn signals and hazard lights. Make sure the wiring isn't touching the road and is loose enough for turns.

Trailer brakes: ask before you book

Brake rules vary by state. NHTSA notes that many states require trailers above a certain loaded weight to have a separate braking system and a breakaway switch, and some states require brakes on every axle of the trailer. Check your own state's rules, and if you will drive in another state, check its requirements too.

NHTSA describes two basic types of trailer brakes:

Electric brakes need a controlling device in your vehicle, typically a control box within the driver's reach, plus extra wiring. Ask whether your vehicle has a brake controller.
Surge brakes are hydraulic brakes on the trailer itself, activated by a master cylinder where the hitch meets the trailer tongue. They are not controlled by your vehicle's brake fluid. NHTSA notes they may not be legal in some places.

Load the trailer so it tows straight

Wisconsin DOT says trailers must be loaded correctly to prevent sway and fishtailing, with most of the weight toward the front of the trailer. A few more habits help:

Balance the load front to back and side to side.
Keep tongue weight in range. North Carolina's guide says it should be at least 10% and no more than 15% of the loaded trailer's weight.
Tie large objects directly to the trailer, and consider covering the load with a sturdy tarp or netting.
Don't overload your vehicle or the trailer.
Check that the rig sits level. NHTSA says most trailers and tow vehicles should be level during travel.

Driving with a trailer

NHTSA says to take time to practice before driving on main roads, and never to let anyone ride in or on the trailer. Once you are rolling:

Drive at moderate speeds. Sway is more likely as speed increases.
Allow considerably more distance for stopping.
Make wider turns at curves and corners. The trailer's wheels run closer to the inside of a turn than your vehicle's wheels.
If the trailer sways, let off the gas and keep a firm grip on the wheel. If you have an electric brake controller, NHTSA says to apply the trailer brakes with it by hand. Don't use your vehicle's brakes to stop sway; that generally makes it worse.
Avoid passing on steep upgrades or downgrades.
On long downgrades, brake at intervals. Brakes held on for long periods may overheat.
To back up, put your hand at the bottom of the steering wheel and move it the way you want the trailer to go. When you can, have someone at the rear of the trailer guide you.

What rental websites tell you, and what they don't

We read the websites of 175 trailer rental businesses in our directory in October 2026. Of those, 47 mention delivery, 34 take bookings online, and only 6 publish rental prices on their site. So at most of these businesses, you will need to call for a price. Ask about hitch requirements, delivery and price before you go. Delivery is worth asking about if your vehicle isn't rated to tow the loaded trailer.

Browse trailer rental businesses or start with utility trailer rentals, and see how we list businesses.

Pre-pickup checklist

Bring or have ready

Your vehicle's tow rating, GVWR and GCWR from the owner's manual.
Your ball size and the weight ratings of your hitch parts, if you have your own.
Your insurance details. NHTSA suggests contacting your insurance company to make sure you have the proper coverage.
Wheel chocks, which NHTSA's checklist says to have on hand.

Ask the rental counter

What does the trailer weigh empty, and what is its maximum loaded weight?
What ball size does the coupler take? Do you supply the ball mount and ball?
Which plug does the trailer use, and do you have an adapter?
Does it have brakes? Electric or surge? Do I need a brake controller?
Is there a breakaway cable, and how do I attach it?
Do you deliver, and what does that cost?
What is the total price, including any deposit and fees?

Before you pull away

Check tire pressure on your vehicle and the trailer. Your vehicle's recommended pressure is in the owner's manual and on a placard on the driver's door pillar or door frame. Your vehicle's tires may need higher pressure for towing, especially heavy loads.
Confirm the coupler is latched, the chains are crossed and the wiring is plugged in.
Test every light with a helper.
Make sure the trailer jack and tongue support are raised and locked.
Check your mirrors. Some states require extra tow vehicle equipment, such as side and rear-view mirrors.

Towing rules change and differ from state to state. This guide is not legal advice. Confirm current rules with your state's motor vehicle agency, which you can find through USA.gov.