You might ask some individuals in the place what-if any creatures are in your place and how they handle them. Or you can go to a reliable baby's room or discover your regional expansion workplace to get that details.
We have wallet gophers and have to range the end of the bins with components fabric (very little wire) Some have bunnies, floor hogs, turkeys and record goes on
The size is up to you and your pocketbook! You can go as low as 8" or so, but if you think of any seniors or impaired seeking to lawn it would be awesome to have some bins about seated stage with a rim for someone to sit on. Maybe 18" high?
I saw an excellent boy look venture at a mature apt where the mattresses were different from 1-3', all staggered. It was very awesome looking as well as excellent for different capabilities of the citizens.