Get some color in your life with the made in America garden trays. Our trays are stronger, more durable, and less prone to cracking than your traditional black 1020 tray. Most trays are .7mm in thickness our are 1.75mm in thickness. Top Dimensions are Length 21 in, Width 10.5 in, Depth 2.5 in . These trays are perfect for seed starting, wheatgrass, microgreens, and many other things.