Someone had posted that he has trouble with the RV ladder rungs being weak and cracking the plastic outside clip. I too have had that happen and when I checked it out I realized it is not made with the highest degree of quality. The chance of this failing under weight is quite frankly scarry. I went to Home Depot and purchased 14 hose clamps 1-1/4 in size and attached one to the underside of each step. Make sure the screw portion is below the inside of each step. These are made of stainless steel and cost approx. $1.00 each. The clamp adds more rigidity to each step and gives some extra peace of mind.
Mark
Mark