Abstract: A flooring panel is provided for livestock facilities by permitting size variation of the facilities without requiring substantial expenses for new molding and fabricating equipment. The panel is formed of extruded components and is easily assembled. A plurality of longitudinal rods are engaged by slots in a plurality of transverse cross members. The slots have a narrow opening and a wider dimension therebelow, while the rods are provided with a corresponding cross section. Alternatively, the slots may be described as having a transverse dimension, vertically displaced from the opening thereof, which is narrower than a transverse dimension further removed from the opening. Such an arrangement locks the rods in the slots and prevents vertical movement thereof. The cross members are formed of a material sufficiently flexible to permit assembly by tapping the rods into the slots using a hammer. Additional structure may provide longitudinal locking of the rods within the slots.

Abstract: The invention relates to a rotationally molded plastic flush tray having a drain opening and a plurality of ribs or rib portions projecting upwardly from the horizontal interior portion of the tray for channeling flushing fluids to the drain opening. The ribs or rib portions include openings for permitting the plastic material to flow during molding and to provide uniform plastic thickness prior to solidification of the plastic.