I bought a few of these trays both with and without holes to grow microgreens in (i usually use 1020 trays). They are super sturdy and easy to handle. But, 2 of these trays will not nest in a standard 10x20 tray. I carry my microgreens to my farmers market to sell so fitting 2 in a 10x20 tray would help with handling so right now that is a deal breaker for me. Also, I ended up with a few of the trays with no holes leaking at what appears to be a weak spot in the plastic. I'm thinking I just ended up with some duds and will be trying more of them in the future if I can find a 1020 tray that will hold 2 of them.