most E-stores collapses because there aren't any supports. supports will be placed in very specific places. one on each corner, two at the middle where games are supposed to be placed, two surrounding the entrance, and five at the outside. it also collapse because of the flooring and roofing. the flooring will be concrete covered with marble tiles. the roof will be marble with dry cement on the outside. people get excited when they can buy what ever you can in an E-store. most people die from collapsing buildings while my customers won't because its strong. supports on outsides are called pillars.