The Cardinal Gates Stairway Special Gate is a high-quality child safety barrier. It is the best gate on the market for use outdoors - perfect for patios decks and other areas outside. It offers an ideal safety solution for the top or bottom of the stairway or anywhere a safety gate is needed. With durable aluminum construction this gate can mount at various angles and features a childproof latch. The Cardinal Gates Stairway Special Gate features an adjustable width of 27 to 42.5 .