Letting a dog carry some of their own gear is one of the real joys of backpacking together — but how much is too much? The honest answer is that it depends heavily on the individual dog, and that the popular “percentage” figures are guidelines, not rules.
The commonly cited range
Working-dog and outdoor-skills guidance commonly references pack loads in the range of roughly 10–25% of a dog’s body weight. The lower end applies to most companion dogs; the upper end is generally reserved for fit, conditioned working dogs. There is no single veterinary standard, and the right number for your dog depends on several variables.
If those numbers sound wide, that’s the point: a couch-to-trail dog should start well below even the low end.
What actually changes the answer
- Conditioning. A dog that hikes regularly can carry more than a “weekend warrior.” Sporadic heavy loads are exactly what you want to avoid.
- Age and health. Puppies whose growth plates haven’t closed, seniors, and dogs with joint issues should carry little to nothing.
- Build. Broad-chested, athletic dogs distribute a load better than fine-boned or long-backed dogs.
- Heat and terrain. A load that’s fine on a cool, flat trail becomes punishing on a hot, steep day. Reduce weight when conditions get harder.
- Fit of the pack. A poorly fitted pack shifts and chafes, making any weight harder to carry. Fit matters as much as pounds.
How to build up safely
- Start light. Begin with an empty or nearly empty pack and short hikes so the dog gets used to the feel.
- Increase gradually — both distance and weight, one at a time, over several outings.
- Balance the load between the two saddlebags so the pack doesn’t pull to one side.
- Keep the center of gravity low — heavier items low and close to the body.
- Watch your dog. A change in gait, reluctance to continue, or raw spots under the straps mean stop, adjust, and carry less next time.
A reasonable starting point
For a healthy, active adult dog with no risk factors, starting around 10–15% of body weight and building up slowly is a common, conservative approach. For a 50 lb dog, that’s roughly 5–7.5 lb total — water, food, and a few light items. Condition first, add weight second, and when the day is hot or long, carry it yourself.
Editorial note: This guide synthesizes publicly available outdoor-skills and canine-conditioning guidance rather than asserting a single veterinary standard, because no universal “safe carry weight” exists. For a dog with any health concern, consult your veterinarian before adding a loaded pack.
Frequently asked questions
How much weight can a dog safely carry in a backpack?
Working-dog and outdoor guidance commonly cites roughly 10 to 25 percent of a dog's body weight. The lower end applies to most companion dogs; the upper end is for fit, conditioned working dogs. For a healthy, active 50 lb dog, a conservative starting point is about 10 to 15 percent — roughly 5 to 7.5 lb total — built up gradually.
What changes how much weight my dog can carry?
Conditioning, age and health, build, heat and terrain, and pack fit. Puppies whose growth plates have not closed, seniors, and dogs with joint issues should carry little to nothing. A load that is fine on a cool, flat trail becomes punishing on a hot, steep day.
How do I build up my dog's pack weight safely?
Start with an empty or nearly empty pack on short hikes, then increase weight and distance one at a time over several outings. Balance the load between both saddlebags, keep heavy items low and close to the body, and stop if you notice a change in gait, reluctance to continue, or raw spots under the straps.
Sources & research
Read our research methodology and editorial standards →
- Veterinary Hiking With Dogs: Tips for Hitting the Trail
- Retailer Hiking with Your Dog