Common mounting methods are freestanding panels, pressure-mounted systems (typically tool-free), and hardware-mounted installations that require drilling and a mounting kit.
Most are made from plastic or metal; some models combine metal frames with plastic components.
They are described for use in open areas, patios, rooms and doorways, at the top or bottom of stairs, and as room dividers.
Some listings show industry certifications such as JPMA and indicate compliance with ASTM standards.
Pressure-mounted designs and freestanding play yards typically install without drilling or special tools; hardware-mounted installations generally require tools and a mounting kit.