InnoTruth 28.9-42.1" Wide Baby Gate for Stairs & Doorways, 30" Tall Pressure Mounted Dog Gates for Stairs Expandable One-Hand Open, Easy Step Walk Through Dual Lock Metal Pet Gates for Dogs, White

I had this issue. You need a “y bracket” baby gate attachment (link below, but you can google it for other options) for the side with the bars and then you need a wall nanny for the other side. We had to try a couple gates but this one worked best for us https://www.amazon.com/dp/B0C5H9DLJS . https://a.co/d/0bTucfFa (y bracket link)