I used garden fence wire (2"x4" holes) above a frame of wood from recycled loft bed frame (so it was about 2x4s by not exactly). The frame is about 12" high - its only purpose is to keep the deep bedding in place.What do you use?
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It works well for my purposes which are just to keep the chickens on their side of the shed and let as much air flow through the building as possible. It doesn't matter if the dust comes through. Or that it is see through - an advantage for me but might not be for every purpose.