Why Your Kitchen Storage Shelf Wobbles on Hardwood Floors and How to Fix It
A kitchen storage shelf rocks on hardwood when one foot is not carrying weight.
ONE PRODUCT. ONE PRACTICAL QUESTION.
Start with the job in front of you.

A kitchen storage shelf rocks on hardwood when one foot is not carrying weight.
Keep the liner inside the tub, then move the caddy and its contents behind the liner's natural hanging line.
A kitchen storage shelf that drops at one front corner has a support problem before it has a storage problem.