Thank you! The coop will have a wood floor to prevent cold air (draft s)and keep predators out. The purpose of building a hardware cloth floor above the other floor is to to keep the chickens out of the poop I collect.The raised floor will only be under the roost bars .I will try to find the galvanized hardware cloth that's coated with pvc to make it less likely to injure their feet(it makes the 1" mesh smaller too)
EDIT: I will have several poop trays underneath the hardware cloth.
If there is a solid, predator-proof floor below the wire and the only purpose for the wire is to keep the birds out of the poop then you could use a larger wire -- even something like 2x4 wire -- since they won't be walking on it.