Baby gates are commonly made from metal, plastic, or a combination of metal frames with plastic components. Play-yard style panels are often plastic, while many doorway and stair gates use metal frames.
Extension pieces vary by model and may include 4 in, 6 in, 8 in, and 12 in additions, sometimes in combinations. Several gates specify a maximum number of extensions that can be used (for example, a three-extension maximum).
Assembly ranges from no assembly for some retractable or plastic gates to adult assembly with tools for many metal models. Hardware-mounted stair installations typically require drilling and tools, while some pressure-mounted or no-drill options need no drilling or only minimal tools.
Multiple listings indicate a common spacing of about 2 inches between bars on metal-frame baby gates.
Reviewers commonly report straightforward installation, easy day-to-day operation (often one-handed), and that gates feel sturdy and well built. A minority mention a small learning curve for some latches or occasional fit/installation fiddliness.
