An interactive sliding-door device has a track assembly, a door assembly, and an interacting assembly. The track assembly is mounted on a top end of an inner space of a building, and has multiple elongated members disposed side by side. The door assembly has multiple boards mounted in the elongated members respectively. Each of the boards has two wheel assemblies, and the wheel assemblies are slideable relative to the elongated members. Therefore, the boards can slide in two ways, and are unrestrained from a construction layout of the building. The wheel assembly is adjustable according to a height of the board. The interacting assembly may be mounted on the board directly or by two mounting assemblies. The interacting assembly has two clamps, two positioning wheels and a cord. The cord is mounted in the positioning wheels and clamped by the clamps and then the boards can slide interactively and stably.

A frame assembly, for use in window and door applications configured to retain a panel, comprising a frame with a cover assembly and a support assembly having a track assembly, and a sill assembly and a header assembly both interconnected to a securing surface. The cover assembly is interconnected to the support assembly. The sill assembly comprises a roller member disposed in supporting relation to the track assembly, and the header assembly is disposed in supporting relation to the support assembly so that the frame is movable relative to both the header assembly and the sill assembly. At least a portion of the frame comprises a predetermined thickness and a predetermined width. The predetermined thickness is substantially less than the predetermined width so that both cooperatively and concurrently enhance viewing through the panel and the frame's stability.