I have a ground floor apartment, and I have a back door that leads outside. There are currently two doors that I have to open to get out–a regular door and a metal grate. I want to install a screen so that I can leave the indoor door open without being overwhelmed by insects, but it seems ridiculous to add a third door. What I was thinking about doing was to affix a thin layer of wood on the outside of the grating and staple gun some screen to it, but I’m not sure about the best way to attach wood to metal that would stand up to weather conditions. I thought about clamps, but the metal door is difficult to close as it is, so I don’t think I could wedge anything, even if it’s really thin, in between the door and the frame it closes into. Any suggestions? Or, any ideas about how else I could go about this project?