A dog box is a cargo compartment built for a passenger who can't hold on: ventilated walls, a secure door or harness point, and a floor your dog can brace against. Purpose-built crates from Badger Bikes, Velogut, and Convoy Products come in double and triple compartments with airflow cut in; drop-in solutions from Dogs n Cargo turn an existing box into a dog space with a liner and a FixStrap safety harness; soft options like the Cargo Dog Bag from Dyed in the Wool trade rigidity for weight.
Prices run from around 27 EUR for a safety strap to 900 USD for a large plywood crate, so there's a fit for a small dog on short trips and for a big dog who rides daily. Check the box is cut for your platform and that ventilation and a tie-in point suit your dog's size.
New to riding with a dog? Read our dogs on cargo bikes guide. Want a general cargo box instead? See hard boxes. After a soft carrier? Browse soft bags.
