load section track 96 and chain guide 97 also allows for ease of removal of component parts as necessary for servicing removable load section technology is well known and will not be described in further detail referring to fig5 chain pulley 86 is mounted within chain guide 46 in conventional manner chain is thereafter looped around chain pulley 86 and conventional power sprocket not shown remotely located from chain pulley 86 and attached to door lead trolley assembly 100 in conventional manner the floor contact member 34 maintains continuous predetermined tension against the floor in a preferred embodiment as the door is activated the anti sway trolley assembly 2 rolls in the chain guide 46 with the spring 38 loaded caster 34 continually urged in contact with the floor 36 thereby providing both lateral stability to the door panels 62 during travel towards or away from the closed position and ensuring that the sweep at the bottom of the door maintains a predetermined position with respect to the floor 36 preferably the anti sway trolley assemblies 2 are located about every 3 to about every 4 feet along the span of the door and more preferably about every 3 5 feet along the span of the door the preferred embodiment uses a double sided partition as exemplified in fig3 the panels 62 of the first partition side 90 are mounted to floating rod assemblies 6 as described above the panels 62 of the second partitions side 92 are not mounted to.