We have had our shed for about 5 years and it has held up great. When we first built our shed we put it on a pressure treated wood foundation but because of Utah winters and sprinkler systems the wood began to break down. We decided that we needed to pour a cement foundation (would recommend going this route the first time) and then put our shed on that. We disassembled our shed, poured our foundation and then rebuilt our shed without any issue. The shed is still working great and withstands all sorts of weather without any leaks even with being built, torn down and rebuilt.