How much weight can a cargo box handle?
Each cargo box has its own maximum weight capacity, which should be followed strictly in order to ensure not only the box's good condition, but road safety as well. For most larger cargo boxes, the weight limit is between 150 and 165 pounds, but smaller models may have weight limits closer to 110 pounds. Either way, it's better not to push the limit -- heavier items are better served by being placed in your trunk or your car, if possible.