Abstract: The present invention is a window frame wherein all of the structural members are formed with the same substantially identically-shaped configuration by metal extrusion. A plurality of structural members are arranged to form a supporting structure. Each structural member has a U-shaped channel and a second arm spaced apart on defined by a base portion having a first arm and a second arms spaced apart on opposite lengthwise sides of said base portions. The first and second arms extending from said base portion have end portion turned inward and extending in a direction toward said base portion. Fastener detachable secure the plurality of structural members into a configuration adapted to detachable mount a translucent barrier within the supporting structure formed by the structural members.