Build your Free Standing Flash Rack. You can alway add on a second layer at a later time. WHAT IS NEEDED TO BUILD YOUR FLASH RACK Single Level Flash Rack: (1) Wall Mount Flash Rack, (1) Single Level Legs. Special Note: If you plan to get another level at a later time please purchase a Double Level Legs instead of the Single Level Legs. Double Level Flash Rack: (2) Wall Mount Flash Rack, (1) Double Level Leg Single Level Tier Standing Flash Rack includes: (1) 30 Pane & 60 acetate sheets. Each pane is double sided front/back. Each pane can hold 2 standard size flash on each side. Each pane hold 4 flash sheet making it hold the total of 120 sheets of flash. Double Level Tier Standing Flash Rack includes: (2) 30 Pane & 60 acetate sheets. Each pane is double sided front/back. Each pane can hold 2 standard size flash on each side. Each pane hold 4 flash sheet making it hold the total of 240 sheets of flash.