American Stand Up Custom Cages American Stand Up cages are professionally developed and engineered to be quickly assembled and disassembled without loosing structural integrity.  Perfect for promotions or professional gyms, American Stand Up cages are built with the same incredible 'best in the industry" quality expected from American Stand Up products.  They are easily assembled and disassembled and made to handle the toughest MMA fights. Standard cages come 20’ flat-flat/24’ corner-corner and 36” floor height.  Cages are built to a 24' standard but can be custom built to meet any need.  Call 919-252-9581 for pricing and details.