You can easily level the heaviest cabinets. Each set (4 pc) has load bearing capacity of 600 lbs. The bottom lip carries the weight of the cabinet.
Minimum installation height is 3".
The manufacturer states the weight capacity of these legs are 600 lbs (which is a lot of weight). Even though this is the manufacturer's endorsement, we recommend the load bearing capacity of 400 lbs per 4 piece set.