[CavySpirit]

Thanks for posting the warning. I think it's important that people realize that when they are building multiple levels or ramps or upper decks that they cannot rely on one or two zip ties as hinges or connections. Also, not all zip ties are alike. They come in various thicknesses and therefore strengths. It's important to double, triple and even quadruple the connections that you make with zip ties. For example, if you use zip ties as a hinge for a ramp or upper deck, especially with the heavy wire shelving, you should use not just two zip ties, but more like six or more.

Thanks again for the post.