I recently purchased the KETTER High Storage Shed. It took around 3 hours to assemble which I was able to do on my own. The assembly instruction manual is easy to follow & all the sections fitted perfectly together, so no need to modify anything as the design is well engineered. There are lots of screws to secure it all together so be prepared, an electric screwdriver would be an advantage but not essential. I am impressed with the quality, fit & finish & it makes an excellent outdoor storage un...