it does require a seperate space and lighting but it doesnt take up that much space generally much smaller than your flowering room but guess it depends on how many mother plants you are keeping though, as per clones they can be put on a shelve or shelves in seedling trays for rooting with flouros above them wich saves space then you can either throw them into the flowering room or veg them for a little while in the same area as the mother plants but this allows you to always have plants in flowering versus using seed with one area that is both the veg and flowering area.