Widths vary by style: many adjustable metal walk-through gates cover ranges around 29.5–51 inches, retractable mesh/roll-up gates extend up to about 55 inches, and multi-panel or folding playpens can span much wider — examples show up to roughly 80 inches when fully extended.
Heights vary by style: many walk-through gates are around 30 inches tall, some retractable models are about 33 inches, and taller multi-panel playpens can be about 40 inches.
Outdoor-friendly features include anti-rust or protective coatings on metal gates and playpens, plus details like plastic anti-slip caps to protect surfaces and stabilize the gate across different outdoor flooring.
Common mechanisms include dual-swing panels with double locks, one-handed latches on walk-through doors, and automatic locking on some retractable gates to allow one-handed operation.
Multi-panel playpens are often sold as 8-panel metal sets (each panel about 27 inches wide) configurable into different shapes, while some wooden folding fences come as 4-panel sets (about 20 × 30 inches per panel) that can stretch to roughly 80 inches total.
