child pet gate with door

Typical walk-through door widths vary by model, most commonly about 16.5 inches up to 25.5 inches, with several sizes available between those limits.

Many walk-through gates include both features: an auto-close mechanism that gently pulls the door shut, and a hold-open or stay-open option that keeps the door open when it’s swung past a set angle.

Common options include one or more extension panels or frames (often 2–3 extensions); some super-wide models use multiple hinged panels or convert into multi-panel play yards to span very wide or angled openings.

Most models offer pressure-mounted or hardware-mounted options; some list both. A few also advertise no-drill pressure mounts or include hardware kits/wall cups for added security.

Fit spans in these results start as low as about 28 inches and extend to very wide modular setups (examples show up to 192 inches). Many models, using included extensions, commonly adjust to doorway ranges from the high 20s to the low 50s inches.

Some gates include a dedicated small-pet opening; one listing specifies a patented pet door sized about 7.5 by 7.75 inches, while other models note pet-friendly walk-through designs without giving specific pet-door dimensions.

They’re commonly used in doorways and hallways, at the top or bottom of stairs, and as room dividers; some listings also note use in front of fireplaces or for very wide openings.