Like everyone else, when I saw this I thought it was gonna be flimsy and fall apart - not true!  2 of us put it together - very easy and ingenious with tracks to slide the panels into, although it did take about 5 hours, mostly cause it was humid and kept stopping to rest and hydrate. We didn't bolt it to the cement because we may change the location and figured with a snow blower and lawn mower in it, it wasn't going anywhere.  added a 5 shelf wire rack and fit all my yard tools in it - lawn mower, rakes, shovels, hedge clipper, bags of dirt, gas cans, etc.