We did option A, put 1/2" hardware cloth down on the entire bottom and nail it to the frame of our 4' x 10' coop/run footprint area.
We chose to do so was because there are a lot of tree roots in the yard, hard to dig down. Another more important reason was that our friend in NC warned us of his experience. He did option C like most people, but had some massive predator who ripped out of the 1/2" hardware skirt, dug down and in, and wiped out all his chickens in one night. We didn't want to invest all that work and found out some animals can out dig us. Thus the complete fortification all around.
I did worry about chicken walking on the wire mesh, but after putting down 2" of pine shavings as a start, then do deep litter method ever sine, there are quite a few inches of bedding materials for the chickens to scratch and walk comfortably. In fact, we had to add 2 stacks of 4" high vinyl landscape edging to keep the shaving from spilling out, and hauled out some of the shaving when it become hard to rake everyday.
One other unforeseen advantage was that our yard is very wet, area around the chicken coop often floods. Having the entire bedding "sitting" on a wire mesh "tray", it keeps the bedding dry even when the ground is soaked.
We chose to do so was because there are a lot of tree roots in the yard, hard to dig down. Another more important reason was that our friend in NC warned us of his experience. He did option C like most people, but had some massive predator who ripped out of the 1/2" hardware skirt, dug down and in, and wiped out all his chickens in one night. We didn't want to invest all that work and found out some animals can out dig us. Thus the complete fortification all around.
I did worry about chicken walking on the wire mesh, but after putting down 2" of pine shavings as a start, then do deep litter method ever sine, there are quite a few inches of bedding materials for the chickens to scratch and walk comfortably. In fact, we had to add 2 stacks of 4" high vinyl landscape edging to keep the shaving from spilling out, and hauled out some of the shaving when it become hard to rake everyday.
One other unforeseen advantage was that our yard is very wet, area around the chicken coop often floods. Having the entire bedding "sitting" on a wire mesh "tray", it keeps the bedding dry even when the ground is soaked.