See Gate Selection Chart on Kidproteq's Home Page The extra tall Center Gateway stands at 42". The Gateway series uses the pressure mount system rated #1 by a leading independent consumer organization. This premier gate installs quickly without tools or hardware, leaving no holes to damage walls or woodwork. Constructed of strong tubular steel, the U-shaped frame remains firmly installed with the center walk-through door opens in either direction. At 42" it's great for the safety of children and confinement of large dogs while also helping owners prevent bad habits like jumping & climbing. The width is for a 36" opening. Optional extensions KP-G16-5.5 up to two may be added for openings up to 48 and 1/8 inches.