This PawHut puppy gate does the trick.
Need to keep pets away from certain places? Suitable for hallways, doorways and staircases, the width is adjustable for different sizes. PawHut Dog Safety Gate Walk Through Pet Gates Pressure Fit, Auto Close and Double Locking for Doorways, Hallways, Stairs, White | Aosom Canada Its metal frame stays in shape when in use, whilst the lead-free surface keeps pets safe. Accessories are included, making it easy to assemble – you can get your gate up instantly, so pets stop going to restricted areas.