Stake Wall Model Containment Berms feature a unique design which allows the sidewalls to collapse in either direction and spring back automatically to their upright position! Roll drums over the sidewalls, drive trucks through them, and the sidewalls always return to vertical without assistance.  See how the sidewalls work

No set-up required - unfold and the sidewalls automatically spring into their vertical position.

Rugged Construction - made of XR5, a polymer-coated fabric; offers excellent chemical resistance and durability.  Polyurethane and other materials also available.

Vertical sidewall supports located every 12".  Each Support features a built-in "living hinge" at its base, which allows sidewalls to collapse
in either direction.  Collapsed sidewalls spring back automatically.