Carlson Maxi Walk Through Pet Gate for Wide Openings
When containing your dog in a room, you will want gates on doorways. I like the gates that have cat doors and people doors. This one is made for wide doorways, such as an archway. It mounts on a wall. It looks like it has expandable “legs” that press into the wall, so you could tighten it against cardboard rather than using the wall mounts so that you can move it if desired. If you need it to be even wider, you can always pick up an extension for it, which can take it up to 13′ wide. This would be great even for larger dogs (assuming they aren’t prone to jump over the gate).