How can I replace my sliding glass doors with something else?

Kite Flyer
by Kite Flyer

To keep my cats out of my living room, years ago, I installed sliding glass doors. I am not happy with the lack of air flow and want to re-visit this issue. I have considered building a "barn door" out of white vinyl lattice but I think it would look cheesy in my living room. I have also considered a 3x6 sheet of metal that has been laser cut into a decorative design. I need to be able to keep functioning doors here, but I need them to allow maximum air flow. Any suggestions? Whatever material considered has to be strong enough to withstand a cat trying to climb it. :)

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