Model #: TT280The TT280 Linear Crash Rated Gate will withstand the impact of a 15,000 lb vehicle striking the gate at 50 MPH, suffering no significant damage. The TT280 was created for the highest security applications such as embassies, government facilities and corporate headquarters.The gate can be tailored to match the surrounding decor in a wide variety of architectural treatments.Delta’s sliding high security gates are all crash rated. One model, the TT280, pictured here, exceeds every known standard for crash worthiness. Some models operate without contact with the ground across the opening, one is a manually operated swing gate while others operate with rack and pinion drives across V-groove wheel ground tracks while incorporating IR safety beam and safety edges. Swing versions are also available.The clear openings range from 12 to 30 feet (3,657 mm to 9,144 mm). The standard height for all, except the swing gate, is 109 inches (2,769 mm).