What you are baking determines the size of rack
A wire baking rack is made up of closely spaced wires, usually arranged in a grid pattern. Wire baking racks are designed to sit on a flat surface like a counter top or table. A wire baking rack has small wire feet that elevate the flat rack slightly above the surface it is placed on.
While cookies can be fitted onto a small rack easily, a cake or bread will need a rack that definitely fits their size. It's a good idea to get a few, perhaps one square or round one and one rectangular one, so that you have both enough and the right size for the particular baked item.
If you want the baking rack to sit in a pan, be sure to take the measurements before purchasing the rack.
Another consideration for size is whether it will fit in the dish washer and/or where you want to store it. These store easily along with cookie and baking sheets, and pizza pans, so if you already have these, estimate the size against them and put the size to WUZHOU KINGDA, we will make the products as your admire and try best to meet your demand.