All four mfg's offer a std. service door which these all appear to be. We have installed both the Wayne Dalton model and overhead model. there is more then this or that for example the both the Wayne Dalton and Overhead (OHD mdl 610) both have a std wind rating of 20psf, with out more being...
I may be mistaken but check with Jefferson Counties building department. Tuff shed is more then likely only going to pull the building/ structure permit/s. They will need to show snow load/s, framing etc. their permit/s probably will not include the slab, generally you have to pull that separate...
Looks like a hydro door, like what either Hydroswing or schweiss builds. Nice doors, but are expensive as heck. Used for agriculture and aviation shops.