Abstract: A closure assembly comprising at least two closures moveable in a closure frame, said closure frame including a header, sill and including a track sized to extend the full-length the header and sill thereby providing for guided movement of each individual closure to the maximum extent to and from a fully closed position, the at least two closures presenting a straight line, in-line, closure, such as a window, entry door, French door, patio door assembly and when the closures are pivoted from a closed position whereat said closures are parallel to the extension of said closure frame to a second position wherein free end of the closer is pivoted away from the closure frame, the free end of said closure including an inter-engaging member which inter-engage with adjacent members to brace together said closures thereby against any loading such as wind loads or the like.