everyone for sharing your seedling projects. I thought I was crazy doing 200+ seeds. But after reading your seeds projects, I don't feel so bad about the number of seeds I am starting this year. It seems manageable. I would need 3-4 trays with each tray having 64 cells. At two trays per shelf, I would just need two lighting units. If I am lucky to get 200 seedlings, I would need a bed that measures 27ft by 3.5ft.