I don't know if my cats are too silly to know they can jump over (or knock down) this fireplace screen, but I utilize two in different areas as a kitty deterrent. Methinks, they know there will be a lot of screaming if they violate my plant domains! Looks a little better than cardboard and not too pricey. AMZ has the best price.
Look into adjustable wire shelving racks. These are great.
They've been trained for 7 years that violating mum's plants leads to a day long tirade of unpleasant language! 😂