Features: Gate Door expands up to 47.2" wideRecommended for medium size dogs 17 to 44 poundsGate Door locks automatically when released at 45°Hassle-free design allows safe and easy passageBeautiful hardwood constructionAssembly requires attachment to wall surface for safetyInstruction manual included1.9" space between wood spindlesWood spindle size is 5/8"1.75" space between floor surface and bottom of Gate DoorMade from eco-friendly, sustainable Rubberwood New and exclusively by Richell! This beautifully crafted pet gate is especially designed to use at the top of a stairway or hallway opening, but also in other doorway/hallway openings throughout your home! The Expandable Walk Thru Pet Gate confines your pet safely using an upper/lower locking system. Plus, the gate locks automatically when the door is released at 45°. Because the Expandable Walk-Thru Pet Gate is designed without a U-shaped frame, it allows you to walk through easily and safely when used at the top of a stairway opening. It attaches securely to wall surfaces/openings from 31.5" to 47.2" wide (Gate Door expands up to 47.2" wide) and fits beautifully in any home interior! Its beautiful hardwood construction complements Richell's other fine wood pet products. Now available in a new rich, dark Coffee Bean finish.