Abstract: A tray assembly may be used in combination with inclined, stepped, level or variable level support surfacing. The tray assembly may be used in tandem with identical embodiments of the tray assembly for forming larger, linked tray assemblages. The tray assembly may comprise a plurality of legs, which are stowable in a primary tray structure when not being used to elevate the tray structure above a support surface. When used to elevate the primary tray structure above variable level support surfacing, the legs may each be adjusted relative to the primary tray structure for properly maintaining a horizontal tray configuration relative to the support surfacing. The tray support legs are removably receivable in the tray-receiving slots for stowage, and are removably receivable in leg-receiving apertures for supporting the primary tray structure in horizontal spaced relation relative to a support surface.

Abstract: A knockdown platform for use on an inclined surface comprising a table structure having an upper table top with a plurality of indentations and openings for containment of a variety of objects. The table structure has a hollowed area on its underside. An upright leg structure is positioned at one end of the table structure. A hinge connects the table structure and the upright leg structure in assembly together in the hollowed area. Collapsible locking brackets further secure the table structure and the upright leg structure in assembly. The collapsible locking brackets are adjustable so as to secure the table structure and the upright leg structure at right angles. The collapsible locking bracket is releasable enabling the table structure and the upright leg structure to be pivoted on the hinge located interior to the hollowed area on the underside of the table structure.

Abstract: A knockdown roof platform for use on an inclined roof comprising a table structure an upper flat table top. The table structure has a hollowed area on its underside. Struts are formed integral inside the hollowed area on an underside of the upper flat table top. An upright leg structure is positioned at one end of the table structure having an upper flat table surface positioned in a common plane with the upper flat table top. A hinge connects the table structure and the upright leg structure in assembly together. Collapsible locking brackets further secure the table structure and the upright leg structure in assembly. The collapsible locking brackets are being adjustable to secure the table structure and the upright leg structure in right angular relation thereby positioning the upper flat table top co-planar with the upper flat table top on the table structure.