Horse Trailer Buying Guide
Choosing between bumper pull and gooseneck, steel and aluminium, and sizing a trailer safely to your tow vehicle.
A horse trailer has to be matched to three things at once: your horses, your tow vehicle, and how you actually use it. Get the tow rating wrong and nothing else matters.
1. Start with the tow vehicle
Find your vehicle's GCWR (gross combined weight rating) and its maximum tow rating, then work backwards. Loaded horse trailers are heavier than people expect: a two-horse bumper pull with horses, tack, water and hay commonly runs 5,000–7,000 lb. A three-horse gooseneck with a dressing room can exceed 12,000 lb.
Aim to tow at no more than 80% of your rating. Horses move, and a shifting live load behaves nothing like a static one.
2. Bumper pull or gooseneck?
| Bumper pull | Gooseneck | |
|---|---|---|
| Capacity | 1–3 horses | 2–8 horses |
| Tow vehicle | Half-ton truck or large SUV | Three-quarter-ton truck with bed hitch |
| Stability | Good; more sway in crosswinds | Excellent — pivot sits over the axle |
| Manoeuvring | Easier in tight yards | Tighter turning circle, backs more predictably |
| Living quarters | Rare | Common |
| Price | Lower | Higher |
For one or two horses and local trips, a two-horse bumper pull is the sensible buy. For three or more, long hauls, or anything with living quarters, go gooseneck.
3. Steel or aluminium?
Aluminium weighs 10–15% less, does not rust, and holds resale value well — but it costs more and is harder to repair. Steel is cheaper and easily welded, but needs paint maintained, especially through salted Canadian winters. Hybrid trailers use a steel frame with an aluminium skin and split the difference.
If the trailer will live outside through Prairie or Maritime winters, aluminium or hybrid repays its premium. If it is stored under cover and budget matters more, steel is fine.
4. Size it to your horses
Standard stalls suit horses up to about 16 hands. Warmbloods, drafts and anything over 16.2 need a warmblood or draft package — longer stalls, more width, and critically more height.
- Interior height: 7 ft is standard, 7 ft 6 in is comfortable, drafts want 7 ft 8 in or more.
- Stall width: 30 in standard; 34–36 in for larger horses.
- Stall length: 9 ft standard; 10 ft or more for warmbloods.
Measure your tallest horse at the poll and add clearance. A horse that cannot lift its head travels badly and loads worse.
5. Straight load, slant load, or stock?
Straight load faces horses forward in individual stalls — best for large horses and easy loading. Slant load angles them, fitting more in the same length and letting many horses balance more comfortably, but stalls are shorter diagonally. Stock trailers are open inside: versatile and easy to clean, with less individual protection.
6. What to inspect on a used trailer
- The floor. The most important thing on the trailer. Lift the mats — always — and probe wood for rot and aluminium for corrosion at the seams. A failing floor is a catastrophic failure, not an inconvenience.
- Tires. Check the DOT date code, not the tread. Trailer tires age out before they wear out; over five years is a replacement regardless of appearance.
- Brakes and bearings. Confirm electric brakes engage on every axle and that bearings have been serviced.
- Coupler and safety chains. Look for cracks and elongated holes.
- Lights and wiring. Test every function with the vehicle connected.
- Roof and seams. Water stains inside mean leaks that will rot the floor from above.
- Frame. Look underneath for rust, cracked welds and previous repairs.
7. Canadian requirements
Trailer registration, safety inspection and licensing are provincial. Most provinces require trailer brakes above a weight threshold (commonly 1,360 kg) and a breakaway system. Check your province's requirements before buying, and factor an annual safety inspection into running costs.