Any more ideas on how I can use that space for my fat lab? I was thinking grills would be the cheapest option?

I can't use chicken wires or cheap plastic/wood accordion doors because my fat lab can destroy that (she's 96 lbs). Our grill door in the dirty kitchen where she stays dinudunggol niya kaya nag loose na I will just use normal roof, our current roof in that area looks transparent/glass and it's hot during mid day.

*walter, I love my dog so much, she's irreplaceable I already spent about that much in her 3 days of hospitalization so I am making sure that does not happen anymore.