My local Home Depot only had circular trays with casters, and for some reason, I decided the ones I needed should be square. Fortunately, the internet (Amazon) provided me with the exact ones I was looking for and delivered them to me, along with zip ties, two days later.
When we were building the house, I was pretty excited about having a pantry. I didn’t want a giant butler’s pantry like the ones infecting the Pinterest, because I couldn’t imagine ever needing to store that much food all at once. We cook a lot, but usually in 4-6 servings at a time type of way. So, the small corner pantry that was already designed for our shmedium sized (but much larger than the condo) kitchen, was going to be perfect.