have been in about 6 lofts with wire floors or grids they are not for me would be ok in stock loft maybe in young bird section just would not fancy it all in my widowhood section often wonder about the corn that falls though the grids and mice or worse being underneath moving about cant see cocks resting at all also the air flow i never liked in them either im sure there top lofts out there with class results with grids or wire floors but just not for me