To 1ofU I have put up a total of 4 Shelterlogic shelters. Two are 13Wx20Lx12H,one 10Wx17L,and one 12Wx20L. The first two are listed as SUV or barn shaped and they shed snow very well. The second one is gable end like you have in your picture. The third is a round top and this is the first winter and the snow only needs a light tap.The gable end like you have needs to be watched for snow fall as I go inside and I use a clean push broom to nudge the snow off. The gable end has fewer cross ribs and this will lead to sagging. This was my first shelter and it is still like new after 3 winters. My design for the base is I fab a double 2x4 base perimeter and I sit the structure with feet screwed to the Pressure Treated lumber. I spike the lumber down with 30 inch 1/2inch rebar driven on an angle. In the spring I screw some 2x4 diagonal braces and a end spacer and I tow the entire structure 75 feet to get it out of the main driveway. The round top will have the cover removed for the summer and the framed towed as the above method out of the main driveway. When I put up the 13x20x12 SUV that I bought from TSC Stores the rib frames took on a long twisting roll. I returned the entire box and these are VERY HEAVY. I got a replacement and it did the same thing. I proved this to the store manager and they had no more. I proved that all the ribs had been drilled off center. I made him an offer to buy the unit at half price and I re drill every rib. Deal done. I setup a jig in the floor mounted drill press and step drilled every hole. I started the frame erection the next morning just ahead of the first snow. As an electrician I know how to run conduit aka tubing. CraigClayton
