Non-metal windows, doors, door units, patio doors, sliding doors and door panels; Non-metallic doors, namely, sliding doors, closet doors, mirror doors and pocket doors; Building materials for commercial and office interiors, namely, framed and frameless glass wall systems comprised of glass wall panels, glass door panels, wall framing, door frames for glass doors, acoustic seals, rollers, tracks, guards, brackets, joints, and corner guards, sold together as a unit; Building materials for commercial and office interiors, namely, glass door systems comprised of glass door panels, door framing for glass doors, acoustic seals, door jambs, door handles, door casings, door fittings, rollers, tracks, guards, door counterbalance assemblies, brackets, joints, corner guards, and locks, sold together as a unit; Building materials for commercial and office interiors, namely, non movable glass wall partitions, glass wall panels, wall panels not of metal, non moveable wall partitions not of metal, and modular non-metal structures for interior storage