18Attach Top Frame to Door Frame,Back Wall and Seat Wall FramesPress/tap top frame into door frame, aligning notch in door frame with corner of top of frame whilealigning with corners of enclosure. Frame snaps down into door frame and back snaps over backwall. Install bolts (4) through top frame and into left and right seat wall frames.TopFrameSeat WallFrameBackWallBracket(preinstalled)TopFrameABABWasher (4)Bolt (4)GINut (4)JJ-Dream II Owner's Manual