Dogs are often kept in cages with wire flooring and it is not unusual for cages to be stacked up in columns. (rescuedhavanese.org)
Some people prefer rabbit cages with wire bottoms because a litter pan can be placed underneath. (myhouserabbit.com)
They had lived for up to 6 years in small cages with wire mesh bottoms, no regular veterinary care, never stepping outside, and no caring human touch. (shelterme.tv)