I would not count on them being content not to jump. It's what cats do unfortunately. The third floor is not so high that it would deter them from taking a leap. This is not a good plan. Is it possible to build them a pen about three feet tall that you could put a couple steps in for them to sit on sort of thing? I'd build a pen three feet high (roof and all) along the entire length of the balcony, making sure top bottom and sides are fully enclosed.
|