Abstract: A stair tread support member for releasably supporting generally planar stair tread members including stair tread members made of glass or other transparent material includes a general planar base part adapted to be supported on a stairway stinger. The tread support member includes spaced apart flanges forming a channel shaped slot for receiving and supporting a stair tread member. A cushioning member may be interposed the support flanges and the stair tread member. Removable threaded fasteners are engageable with the second flange for retaining the stair treads secured to the tread support member. An elongated cap fits in a slot in the second flange and covers the fasteners.

Abstract: Glass block windows or walls are formed by a frame characterized by perimeter members which may be secured to each other at adjacent corners by chemical or thermal bonding or by mechanical connector members. The perimeter members include inner and outer walls, at least one lateral glass block retaining flange and opposed recesses for receiving releasable retainer members which have a hook part which may be snap fitted into the recesses and retained by reentrant edges of the recesses. Block spacer members are formed by opposed block support wall or body parts and by opposed lateral end parts which receive snap-in block retainer and trim strips.