the pair of doors 20 are mounted for movement in conjunction with each other but are to be moved separately the doors are to assume the position against the forward end of the shower tub enclosure which will be assumed to be the out of way or stowage position or can assume a position completely blocking the access opening to the enclosure the pair of doors 20 comprises separate doors 90 and 92 reference is to be had to fig2 wherein door 92 is shown each of the doors comprises a top edge and a bottom edge which are interconnected by vertical sides a pair of roller assemblies such as roller assembly 94 are mounted on the top edge of each door as well as on the bottom edge of each door each roller assembly is located adjacent the vertical side each of the roller assemblies are identical and it is only necessary to describe one such roller assembly as that description will suffice for all roller assemblies referring particularly to fig2 the door 92 is illustrated slideably mounted within a lower track 91 which is formed as part of the frames 14 and 16 the slideable movement is provided by a pivotal roller.