Custom Dog Carts now makes carts in three sizes for dogs ranging in size from toy to giant breeds. Our special carts and shafts are made and fitted to your dog because one-size does NOT fit all dogs. Our carts can be made to fit many different sizes and breeds. These aircraft type aluminum carts are light-weight, perfectly balanced, and easy for small to giant dogs to pull. We help you measure your dogs for harnesses and cart shafts, and we provide on-going advice and assistance to you.