Hinge It - Left, Right, Left...

 

Specify Hinge location from left to right across the window. Example: two panels can be specified LR, LL, RR or LTR.  LTR has a T-post between panels.  LL or RR are "bifold" with both panels hinged together.  Wide window example LTLRTR.  specify Tpost locations measured from Left side of opening for Z frame or Left side of shutter for outside mount