One of the most common questions we get when people are planning a cattle haul: "How many cows can I fit in a 16-foot stock trailer?"
The short answer is about 4 adult cows. But that's a rough starting point. The real number depends on three things: the size and breed of your animals, how long the trip is, and how the divider is set up.
The rough capacity table
For a typical 16-foot bumper-pull stock trailer (about 6 feet wide inside), starting points:
| Animal | Typical weight | Capacity (16' trailer) |
|---|---|---|
| Adult cow | ~1,200 lb | 4–5 head |
| Yearling steer / heifer | ~700–900 lb | 5–6 head |
| Weaned calf | ~400–500 lb | 6–8 head |
| Adult horse | ~1,000–1,200 lb | 3 head (loose) |
| Goats / sheep | ~100–200 lb | 20–30 head |
Three things that change the number
1. Breed and frame size
A 1,300-lb Angus cow takes up the same floor space as a 1,500-lb Charolais cow in terms of weight, but the Charolais needs more headroom and length to stand comfortably. Tall European breeds (Charolais, Simmental, Limousin) and big-framed Brahman crosses use more room than compact British breeds.
If you're hauling big-framed cattle, drop one head from the table above. If you're hauling smaller Hereford or Angus cows, the table is accurate.
2. Trip length
A 30-minute haul to the sale barn is different from a 6-hour haul across Texas. On a short trip, animals can stand crowded without much risk. On a long trip, crowding causes:
- Animals going down (and getting stepped on)
- Heat stress in summer
- Increased risk of bruising and shrink
- Higher injury risk in a quick stop or sharp turn
Rule of thumb: for trips over 2 hours, reduce capacity by 20%. So instead of 4 adult cows in a 16' trailer, plan for 3.
3. Divider configuration
Our 16' Calico stock trailer has a single center divider gate that splits the floor into two roughly 8' compartments. That works well for:
- 2 adult cows per side (4 total)
- 1 horse per side with room to balance (2 horses)
- 3 weaned calves per side (6 total)
- A cow + calf pair you want to keep together on one side, separated from other animals on the other
If you remove the divider (or run it open), you can fit one or two more head but the animals shift more on turns. For trips over 30 minutes, leave the divider closed.
Don't overload
Just because you can physically cram 5 cows in doesn't mean you should. Overcrowded stock trailers cause real problems:
- Animals get hurt. Once one goes down, the rest step on it. Can be fatal.
- You exceed GVWR. 4 adult cows at 1,200 lb each is 4,800 lb of livestock, plus a 2,500 lb trailer, plus tongue weight and gear. Most 16' bumper-pull stock trailers have a 7,000-lb GVWR. Do the math.
- Your truck struggles to brake. A 12,000+ lb loaded combination with a half-ton pickup is over the line. Plan for a 3/4-ton truck minimum when loaded.
- The trip is more dangerous. Sway, longer stopping distances, less margin for emergency maneuvers.
If you need to haul more
If your load doesn't fit in a 16-foot trailer:
- Make two trips. Most common solution. Annoying but safe.
- Rent a longer trailer. A 20-foot trailer adds about 25% more floor area — capacity goes up to 5–6 adult cows.
- Hire a hauler. For one-time long-distance moves of large groups, a livestock hauler is often cheaper than two rental trips.
Bottom line for a 16-foot bumper-pull
- 4 adult cows, short trip, divider closed: comfortable and safe
- 5 adult cows, same setup: tight, do it only on short hauls with smaller animals
- 6 adult cows: too many, don't do it
- 3 horses: easy
- 4 horses: only with the right setup and a short trip
- 6–8 weaned calves: comfortable
Need to haul cattle in or around the San Antonio area? Browse our 16' Calico stock trailer rental or check our service area. Questions about your specific load? Call us at (210) 338-0883 — we'd rather talk it through than have an animal get hurt.