We've got one room (about 15'x8') in our basement which is completely unfinished - no concrete or anything. I was thinking about turning it into a space for light load duties (i.e. lots of 2x4's with 3/8" board over the top), however is it better to:
1) Dig down a little and create some concrete/wood supports (maybe 12" or so) throughout the room, then lay the floor over that, or2) Just lay something waterproof* directly on the dirt, and rest the framework directly on top of that?
3) Concrete the whole darn thing, then lay the wood on top
- I'm not sure what, but I suspect that laying untreated 2x4's directly onto dirt is a Bad Idea ;-) However, I'm not sure if anything suitable exists which will outlive the floor itself - which may imply that option 1 or 3 is better...
There are no building regs here so I can do what I want, but I'd rather not be pulling it all up in 20 years time!
cheers
Jules