I have a house with a very low basement ceiling, and did not want to use the extra inches a suspended ceiling would need. I have ended up using vinyl siding (soffit), white with a grain. I screwed it right on the joist with drywall screws, and used the various edges to make a good fit. It looks great and everyone commets on it. On a couple of occasions I have needed to "get to" the space above and simply unsnapped the soffit.