Trailer Safety 101 - Springhill Equine Veterinary Clinic (2025)

It will never cease to amaze me that horses willingly get into those dark boxes you humans call horse trailers and rattle along down the road. I’ve seen a few protests, but with a little training, encouragement, and some food, they comply and walk right on. You just try getting me into a cat carrier that easily! Since your horse trusts you enough to go against his natural instincts and get into that tin can, we’re going to discuss some very important safety tips to make sure you take good care of him while trailering. From loading to unloading and everything in between, there are opportunities everywhere for things to go wrong.

Before the trip

The most important thing, whether you are planning on hauling a horse around the country or around the corner, is to make sure your trailer is in good working order. Maintaining the functionality of your trailer is critical to the ease and safety of transport.

Inspecting the floor of your trailer is an essential part of trailer ownership. If you have floor mats, pull them up regularly and check underneath. Look for wood rot, rust, holes, and broken welds. Areas of weakness increase the risk of your horse falling through the floor. As you can imagine, a leg through the floor can result in a life-ending injury.

Next, be sure to check your door latches and hinges for any pieces that may be rusty, loose, or missing. As a cat who manages a vet clinic, I see way too many lacerations sustained on horse trailers. Please also check the interior of your trailer for screws or other sharp things that your horse could find to hurt himself on.

Check your trailer brakes, as well as brake lights, taillights, and turn signals before heading out. There could easily be a short in the wiring even if you just drove it yesterday. I see so many trailers come through the clinic with the lights not working. That’s just begging to get rear-ended, which doesn’t end well for the horse.

It’s always good to do a “circle of safety” just before driving away with your trailer. A circle of safety is where starting at the driver’s side door, you walk ALL the way around your truck and trailer until you return to that door, looking for anything amiss. Make sure you kick every tire, and make sure your spare is still inflated. Under-inflated tires are the #1 reason for blowouts, and blowouts are the #1 reason for trailers flipping over. A small air compressor is a lot cheaper than new tires! Look for dry rot, even if your tires aren’t old. The Florida sun is one of my favorite things. I love basking in it while taking my morning, midday and afternoon naps, but it sure is hard on tires when it comes to dry rot.

Trailer Safety 101 - Springhill Equine Veterinary Clinic (1)

I highly recommend yearly maintenance by trailer professionals. Your wheel bearings should be repacked once a year – when was that last done? Has your trailer’s emergency brake battery been checked to make sure it will stop your trailer if it were to become detached from your truck? Maintaining a safe trailer in good working condition will reduce the risk of accidents and make for smoother hauling of your most precious cargo.

Training

As you know, horses like to injure themselves or colic at the most inopportune times. It’s often necessary to transport your horse to a clinic or hospital for treatment. During an emergency isnotthe time to be teaching your horse how to load or unload.

Spend time in your usual day-to-day training teaching your horse to load and unload calmly and quietly. Take time to make sure that your horse is comfortable loading and unloading in all different conditions. Weather and time of day/night can affect your horse’s willingness to get on the trailer. Practicing trailer loading/unloading in normal circumstances will help to ensure your horse remains calm while loading in times of urgency.

What should your horse be wearing?

The first choice is whether or not to tie your horse. There are positives and negatives to both schools of thought, but also some firm rules.

When your horse is loose in the trailer, he can maneuver and stabilize himself in whichever way he feels safest. He can also lower his head and neck more easily which allows him to rest while on a long ride. Lowering his head can help to reduce the chance of a respiratory infection because he can clear his nostrils of dust, dirt, mucus, and germs when he coughs or sneezes. Tying your horse’s head high prevents this very normal behavior and may result in a sick horse.

Some very small horses or ponies might be at risk of turning around in the straight stall of a trailer if they are left loose, or they may find themselves under a bar or panel where they could get injured by another horse. However, most horses find comfort in a bag of hay in front of them and the ability to move around as necessary.

If you do choose to tie your horse, make sure you use a method that can be easily released in case of a problem. My favorite method is to hang “Blocker Tie-Rings” in the trailer and use those to attach the lead rope. These tie rings allow a horse to pull slack in the lead rope if he panics or falls. Similarly, they are quick release if you need to free him fast. You may also choose to use a quick release knot when tying your horse. Whichever method you decide on, make sure the lead rope and any extra equipment is secured safely out of the reach of your horse.

Possibly the most important thing to remember when tying your horse in the trailer is what type of halter you use. Please, listen to this old cat on this one. Please, please, please put your horse in a leather halter, or at the very least, a break-away halter. Halters that don’t break, including rope halters, are incredibly dangerous whether your horse is tied or not. If a horse slips and falls or there is an accident, and your horse is tied with a rope halter or one that doesn’t break, you risk him breaking his back or neck. Similarly, if your horse is in the trailer and has a halter on that is not breakable, you risk him getting caught on a part of the trailer, panicking and injuring himself. And if your trailer is on its side or upside down, it can be nearly impossible to get them out if they are too securely attached. The longer it takes to get them out, the more they will suffer, and the less likely they are to survive. Trust me, this is something that is so easy and can prevent CATastrophe.

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I’m a big believer in putting wraps or boots on your horse’s legs for trailering. Horse legs are soooo delicate and they have almost no cushioning over the important bones and tendons. Remember, it doesn’t matter if your horse is good at trailering and you’re a good driver, because someone else on the road who’s not so careful can still cause a wreck. You can use old-school standing wraps or modern shipping boots. Boots are super quick and easy to apply. They’re basically fool-proof and offer good protection. Get your horse used to wraps or boots before attempting them for a trailer ride though.

Positioning in the trailer

If you have a straight-load trailer, you always want to load the heavier horse on the driver’s side. If you’re only hauling one horse, he should likewise go on the driver’s side. The reason behind this has to do with the pitch, or slant, of the road. When paved, the road is actually taller in the middle than at the shoulder. If you were to put the heavier load on the passenger side, the combination of the pitch of the road and the uneven weight would cause the trailer to pull hard to the right. And if the tires on that side go off the pavement, having all the weight on that side can cause a rollover.

If you have a slant load, the heaviest horse should go at the front (closest to your truck), to reduce the chance of your trailer fishtailing out of control.

Think safety first

When driving your trailer, practice defensive driving at all times. It seems today fewer and fewer people on the road understand trailer safety, so you have to be extra cautious. Give yourself more than enough stopping distance. Take turns slow and wide. Leave extra time and don’t speed. And my personal favorite: don’t pull in anywhere you aren’t sure you can get your trailer out of!

At rest stops, check your horse to make sure everything is hunky-dory. Remember to offer your horse water when you stop, to prevent colic on a long trip. I recommend always carrying extra water with you while you are shipping your horse. You may be going five minutes away or five hours away, but either way, extra water is very important.A trailer on the side of the road full of horses can get dangerously hot very quickly.

Carry a first aid kit and an extra halter and lead rope in a safe, easily accessible place. For more info on packing a good first aid kit, see one of my First Aid blogs.

I could keep giving you Tony Trailer Tips all day, but a cat’s gotta nap. I think the most important thing to remember is that you have some very precious cargo onboard! So do your work before you ask your horse to step on the trailer so you can enjoy safe travels and good rides!

Until next week,

~Tony

P.S. The humans made a really good video about trailering. You can watch it here. While you’re on my YouTube Channel, make sure you subscribe and check out all the other great videos!

Trailer Safety 101 - Springhill Equine Veterinary Clinic (2025)

FAQs

How to know if a horse trailer is safe? ›

All lights (marker, tail, brake, directional, and interior) should be working and bright. Hitch welds, safety chain welds, and snaps should be in good repair. Hitch ball should be kept greased as needed. Wheel chocks should be in good condition.

Where should the heaviest horse go in the trailer? ›

Positioning in the trailer

If you have a straight-load trailer, you always want to load the heavier horse on the driver's side. If you're only hauling one horse, he should likewise go on the driver's side. The reason behind this has to do with the pitch, or slant, of the road.

How to safely trailer a horse? ›

Load horses on the driver's side when transporting a single horse in a straight-load trailer. If you're trailering two horses, load the heaviest one on the driver's side. When hauling one horse in a slant-load trailer, load the horse in the first stall at the front of the trailer.

What side should a horse travel in a trailer? ›

If travelling one horse, load them on the right-hand side of the trailer. If travelling two horses, the heavier horse should be on the right. This helps with balance on corners. Position the horse facing straight at the ramp and walk them up the ramp.

Is it OK to leave a horse in a trailer overnight? ›

Horses are fine for up to 9 hours in a trailer as long as they have food and water, and unloading during the trip just adds to your end time considerably.

What is the safest type of horse trailer? ›

Goosenecks, like fifth wheel travel trailers, are more stable than bumper towed trailers, safer to drive, and easier to maneuver. Gooseneck trailers will have room for horses in the back and most will include an area for tack in the front, and in some cases, saddle racks.

Is it safe to trailer a horse with a rope halter? ›

I often get asked if it's OK to tie a horse in the trailer using my rope halter. The answer is absolutely. I tie all my horses in the trailer using my halter and lead rope and an Aussie Tie Ring. Whenever you tie a horse using a rope halter, make sure the halter is positioned correctly.

Should a horse back out of a trailer? ›

Over time, your horse will likely try to get off the trailer earlier and earlier, until he's eventually trying to turn around inside the trailer, which becomes a safety hazard for both the horse and the horseman. So, you want to make sure that he backs all the way off, and maybe even an additional 10 feet or so.

Can a horse be loose in a trailer? ›

If you tie your horse in the trailer, leave enough slack so that he can balance by moving his head and neck, but not so loose that he can catch a leg in the tie rope. Your trailer's design can help or hinder your horse's balance.

How often should you stop when hauling a horse? ›

How often should I stop? Your horse should have a 15- to 20-minute rest period every four to six hours during a long haul when the trailer is stopped and parked, ideally in a shaded area if it's hot. During this rest period, offer water, replenish food supplies, and do a general safety check.

Which way should a horse face in a trailer? ›

Which way should a horse face in a trailer? A horse should always face forward in a trailer to give them the best sense of balance.

How many hours a day can you trailer a horse? ›

If you are trailering a very long distance it is wise to take one hour breaks every six to eight hours to allow your horse to rest. If this is not possible, then allow adequate rest, usually twenty-four hours, upon arrival.

Should a horse travel in a rug? ›

Rugs offer extra protection to your horses' sides to avoid them rubbing against the walls of the trailer and to prevent them becoming chilly, especially if they're returning home after a competition or long ride. However, beware of over-rugging, it can cause unnecessary sweating and overheating.

Do horses prefer slant or straight load trailers? ›

Do horses prefer slant load or straight load trailers? Straight load horse trailers often cost less, work better for large horses, and allow for easier loading. However, a well designed slant load horse trailer can be built on a shorter wheelbase for easier hauling.

Should I blanket my horse in the trailer? ›

If your equine partner is au naturel (aka: fuzzball), he may not need a heavy blanket, but rather a sheet to block the wind, especially if you have a stock trailer with open sides or windows that do not close. Your trailer should be well-ventilated. Hay, dust, shavings, manure and urine can create toxic air.

How do I know if my trailer is secure? ›

How Do I Make Sure My Trailer Is Secure?
  1. Pin The Coupler.
  2. Make Sure Your Trailer Is Level.
  3. Check For Rust On the Coupler.
  4. Cross The Safety Chain.
  5. Check Your Breakaway Switch.
  6. Load Your Trailer More Heavily In The Middle.
Oct 20, 2023

How to check horse trailer floor? ›

Floor: Test the floor for soundness – lift any matting to check for any rot or rust and pay careful attention to where the edge of the floor meets the trailer walls. Have a look from underneath the trailer to see if there are any cracks in the flooring from below.

How do I know if my horse trailer has brakes? ›

First, look at the tongue of the trailer to see if your trailer has surge brakes. If you have checked the tongue and there is no surge brake, check the axles of the trailer to see if there are electric brakes.

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