42 Inch Tall Narrow Baby Gate This narrow baby gate is 42 inches tall and taller than other retractable baby gates to prevent your babies and dogs from jumping or climbing over it. Expandable Size Specially designed for narrow openings. Our extra tall retractable baby gates can be expanded to 0 - 39 inches wide to fit your opening. Suitable for installation at narrow doorways, hallways, stairways. Retractable Design - Space Saving The tall dog gate can be easily retracted away when not in use, saving space and making it easy to access. Unlike other gates, there is no threshold bar at the bottom, so there is no tripping hazard when you pass through with your hands full.