My build table is a 2'x4' work bench in an 12'x14' area of my basement. Most of that space is taken up by shelves, tools, and plane storage, leaving me about an 8' x5' work area. It can sometimes be a challenge, but I managed to build a GP Spirit Glider with a one-piece wing last year. I've found the space adequate for most 40-60 size planes I've built or worked on.

Depending on what portion of the kit you're working on, sometimes things have to be left for several hours for glue to cure (epoxy wing joints for example). During fuselage and wing construction, its usually preferable to keep things pinned to the work surface until everything is completed, which may be several days or weeks, depending on how quickly you work and how much time is available.

Brad