Vanilla doors are nice. They provide a means of getting in and out of an area easily, while keeping most things in and out. One of these things happens to be light, which can cause problems in spawners and such.
So, my question is, is there anything that has been added by FTB that works like as a door, but also keeps light out? I would just use a piston door, but since those take up space, I can't use it. It also has to be able to be opened by other players, since it's for a server.