Heavy Duty Pair Folding Security Gates secure docks and receiving doors, entryways, garage and service entrances, hallways and aisles without sacrificing visibility or air circulation. Gates up to 24' wide. Pair Folding Security Gates are ideal for openings greater than 12 feet (for smaller openings, use one of our Single Folding Gates). Pair Folding Security Gates can be installed anywhere and any way you need them, including inside or outside door jambs, between post or bollards, attached to pallet racks, between walls, and even in windows! Heavy Duty Folding Security Gates pivot 180 degrees on their mountings - so they move completely out of the way, leaving the opening completely clear of obstructions.