We made it so both doors swing open. When the cage needs a deep cleaning I can take out the brick steps, swing the ramp up and slide the coroplast out.
You're cage is awesome! But, hey, I have a question. When you first introduced your pigs to their new cage, did the go up the ramp right away, or did it take a while? Did you do anything to help them understand there was a second level? The only reason I'm asking is because my piggies have a cage farely similar to yours, but they refuse to make it to the top of the ramp.