Enclosing patio question

[AKA gray asphalt]

Our patio has openings like this:

Any ideas how to enclose it to keep cats in? Thanks, : -)

[mm]

Anesthetize them.

[nicksanspam]

... 2"x4" welded-wire fence above and screen doors below?

Nick

[stevens.shannon]

are those big doorways or small decorative cutouts? if doorways, do what nick says. if smaller, what about framing up some latticework?

--svs