I felt the shelf (floor) could be stronger, I added a 4' x 4' x 7/16 OSB on top and 2"x4" flat un...I felt the shelf (floor) could be stronger, I added a 4' x 4' x 7/16 OSB on top and 2"x4" flat under the metal floor and screwed through the OSB to the 2x4 to hold it all together. I also mounted safety chains to each corner should the cable fail, better to be safe than sorry. I love it, so far so good.
by boss