We have designed and tested the shelves to ensure that they are suitable for the intended use. Such uses include storage of toiletries, kitchen goods, and even installation as a foot rest for shaving one’s legs. However, we will not publish maximum load ratings. There are no industry standards or requirements for this kind of evaluation and our opinion is that publishing such information can invite misuse of the shelves, such as standing on them to clean shower walls, change lights, etc. This would be dangerous in that there is a significant risk of injury from slipping and falling.