I bought this unit and built a solid foundation for it. The walls were not very stable or secure.  If someone wanted to kick it in it could be done. The doors did not fit securely and won’t stay shut. There were many openings to the outside that we used silicone to water proof. I have had it one summer and the walls are starting to bow outwards and the doors won’t secure properly I have to use a screw driver to try to pop into place but it won’t stay. It seems to be warping with the heat and it doesn’t get hotter than 105 where I live and very low humidity we are a dry state for the most part. I am really sad I saved up and invested in this product. It wasn’t cheap. I wish I had gone somewhere else.