Support structure assemblies

Claim 1

IN A STRUCTURAL SUPPORT ASSEMBLY ADAPTED FOR MOUNTING OF SHELVES, CABINETS AND THE LIKE, INCLUDING AN ELONGATED SUBSTANTIALLY RECTANGULAR STRUCTURAL SUPPORT MEMBER AND AN END PLATE ASSEMBLY FOR SAID SUPPORT MEMBER, THE IMPROVEMENT COMPRISING AN EXTRUDED ONE-PIECE STRUCTURAL SUPPORT MEMBER HAVING A PAIR OF PRIMARY CHANNEL MEMBERS FORMING A PAIR OF OPPOSITELY FACING OPEN PRIMARY CHANNELS, EACH OF SAID PRIMARY CHANNEL MEMBERS INCLUDING A BODY PORTION AND A PAIR OF SUBSTANTIALLY PARALLEL ARMS RADIATING FROM THE ENDS OF THE BODY PORTION TO DEFINE ONE OF SAID PRIMARY CHANNELS, A RECTANGULAR WEB CARRIED BY, INTERCONNECTING, AND SPACING SAID PRIMARY CHANNEL MEMBERS, SAID WEB AND THE BODY PORTIONS OF SAID PRIMARY CHANNEL MEMBERS FORMING THEREBETWEEN A PAIR OF OPPOSITELY FACING OPEN SIDE PRIMARY CHANNELS, A RADIAL FLANGE CARRIED ON THE OUTER END OF EACH OF THE ARMS OF EACH OF SAID PRIMARY CHANNEL MEMBERS, EACH OF SAID RADIAL FLANGES BEING SUBSTANTIAL PARALLEL TO THE CORRESPONDING BODY PORTION, SAID RADIAL FLANGES ON OPPOSITE ARMS OF EACH PRIMARY CHANNEL MEMBER EXTENDING TOWARD AND TERMINATING IN SPACED RELATION TO EACH OTHER TO DEFINE AN INTERNALLY SHOULDERED SLOT COMMUNICATING WITH THE PRIMARY CHANNEL OF THE CORRESPONDING PRIMARY CHANNEL MEMBER, AN EXTERIOR ARMS, ONE PAIR OF SAID MOUNTING SURFACES LYING IN A ARMS, ONE PAIR OF SAID MOUNTING SURFACES LYING IN A COMMON PLANE SPANNING ONE OF SAID SIDE PRIMARY CHANNELS AND ANOTHER PAIR OF SAID MOUNTING SURFACES LYING IN A COMMON PLANE SPANNING THE OTHER OF SAID SIDE PRIMARY CHANNELS, AND A TRIM STRIP BEING SECURED PRIMARY CHANNELS, EACH OF SAID TRIM STRIPS BEING SECURED TO ONE PAIR OF SAID PAIRS OF MOUNTING SURFACES TO MASK THE CORRESPONDING SIDE PRIMARY CHANNELS.