Most walk‑through baby gates range from about 23 in to 38 in tall, with many models around 30 in and several at 36 in.
Walk‑through gates cover openings from as small as about 24 in (many start in the high 20s) up to roughly 58 in with extensions; several models extend into the 40–53 in range.
Many walk‑through gates provide a door opening roughly 16–20 in wide, giving a typical pass‑through width for carrying items or walking through.
Common convenience features include auto‑close mechanisms, hold‑open functions or stoppers, two‑way swing doors, and hold‑open positions that keep the gate open when needed.
Walk‑through gates are commonly used in doorways and hallways, as room dividers, and at the top or bottom of stairs.