Plastic shed turned into coop, have question on reinforcing doors

[Toyota85]

So I have a plastic 8x10 Tuff shed that I recently turned into a coop. My question is concerning the doors. What can I do to make them more predator proof? The doors open into a dog run, so a predator would have to go through a fence to get to the doors. I just feel they need to be stronger. So any tips or suggestions on this is greatly appreciated. Thanks

 

[teach1rusl]

I would think that the doors would be fine as is, unless you have bears. But raccoons, coyotes or anything along those lines I'd think you will be fine. I guess if you're super worried, you could always cut out a sheet of 1/2 inch plywood the same size (maybe an inch smaller all the way around) as your door(s) and screw them onto the inside face of the plastic door(s)????