Multi-panel lip seal flood barriers are often used for openings wider than 10 feet or higher than 6 feet for ease of installation and use.  They are available in both side by side or stacked configurations. For larger panels that may be difficult to lift, panel mounted rollers allow larger panels to be positioned and installed with ease.  For wide openings 14' and over,  side by side multiple panel flood barriers are generally used to keep the panel size and weight manageable.  Bracing is required to provide structural support between the panels.  The braces are usually pinned bars mounted diagonally from the front of the panel, however other configurations such as top mounted braces or removable mullions are available.

As with multiple panel flood barriers of any make or design, very slight
leakage may occur at the joint between the panels.  However, this leakage rate is far below allowable FEMA regulations and significantly less than stop log assemblies.