•The horizontal member across the bottom of the curtain is pre-installed in the bottom pipe pocket by the factory.  The horizontal frame members are identified by the 5” legs that are welded at each end and the bottom of the curtain is identified by the yellow cargo webbing sewn to the outside as a floor scrub strip. Both horizontal cross members are preset for the appropriate width curtain by the factory and should not be modified. If you start the assembly in the bottom right hand corner by sliding a 1.0” stock down over a .813” leg then when completing the assembly in the bottom left corner you will be inserting a .813” stock into a 1.0” leg.