includes any cutouts thus in some embodiments no extra material needs to be removed to create the cutouts the openings described herein may be made by drilling punching or any other suitable method in use the system 100 may be supplied to a user in a completely assembled state in which the base 106 first and second post structures 102 104 and connectors 108 are already connected together as shown in fig1 or the system 100 may be supplied disassembled in some instances the base 106 first and second post structures 102 104 and connectors 108 are permanently connected together before being supplied to the user to prevent a user from disassembling the system 100 if necessary the user assembles the system 100 by connecting lateral ends of the base 106 to the back sides 114 of the first and second post structures 102 104 and connecting lateral ends of the connectors 108 to the back sides 114 of the first and second post structures 102 104 once the system 100 is assembled the user inserts the panel 110 between the first and second connectors 108 and between the first and second post structures 102 104 the panel 110 slides within the back side channels 164 of the first and second post structures 102 104 until the panel 110 contacts the first base channel 168 the system 100 is then placed in an upright position in which the connectors 108 are placed vertically over the base 106 the panel 110 is secured in the first base channel 168 and the back side channels 164 of the first and second post structures 102.