We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember DDS saying something
like:

So, may I ask please, are the doors supplied completely plain and has
anyone done this sort of thing before with satisfactory results?

Following some advice on this very newsgroup some 13 years ago I set up
a plain hardboard door on some fruit boxes and used it as a computer
desk, purely as a temporary thing.
Guess what? The temporary nature has proved to be fairly long-term and
it's still supporting a PC, CRT monitor, printer, speakers and assorted
junk.