Hines Farm Homemade Seed Screens - 10 sizes --> #16 fine thru #2 course (half-inch)
We made our own out of scrap 2x4s ripped to 2x2x12 1/2 and purchased standard stainless steel screen set.
Used Kreg screws to assemble and placed on Harbor Freight Cart for mobility. Saved a bunched compared to "store bought".