Floodgate flood barriers require no permanent fitting and have an expandable frame to fit almost all (inwards-opening) doorways. They comprise of a 25mm thick, boxed steel frame covered by a 7mm thick grey rubberised cover. A jacking mechanism attached to the rear of the frame allows both the frame and cover to expand telescopically widthways into the walled area (the reveal) immediately in front of the door. Four bolts situated along the bottom edge of the frame are then adjusted to provide a seal along the ground
