I always see either small artifacts (tools, jewellery, etc) or big ones (ruins of a city, a whole column). So it's kinda weird, but interesting, to see just a piece of wooden door.
Yep, that's a door alright.
It's actually a touch fascinating, because panel doors like this wouldn't re-emerge in Europe for centuries after Rome's fall. Panel doors resist warping better than doors made just out of straight boards.
Yet it just looks like a normal door to us. Strange how pieces of the past can seem so modern, and how many things we take as normal are innovations of one sort or another.