Abstract: Complete thermal insulation of metal rails and stiles in vertically or horizontally sliding or rolling windows or doors is provided by including in the frame thereof centered rigid plastic shapes which extend between panels of the windows or doors. All rails and stiles of each panel are thereby exposed only to either interior or exterior ambient temperatures.

Abstract: A method of making a thermal barrier shape or lineal construction element wherein a pair of lineal metal shapes adapted to receive a lineal insulating member or shape are aligned with each other in generally parallel spaced apart relation and the lineal insulating member or shape having small lineal projections thereon is slidably inserted between the metal shapes to join them together and form the thermal barrier shape. During joining, end portions of the projections on the insulating shape are shaved off to provide a tight fit between the metal and insulating shapes.This is a division of application Ser. No. 580,975 filed on May 27, 1975.

Abstract: A multi-use indoor/outdoor storage locker comprising a rectangular box-like frame, a plurality of panels affixed to said frame, and a top lid and a front door, each of which has rigid plastic runners thereon and which are smoothly slidable into an open or closed position.