Yesterday I built my very own dancefloor, it took me about 45mins once I had all the parts, it might have run over budget, but its fantastic. I'll post pics after its inauguration tonight. We built it for a friends housewarming party, but once the party is over the floor will be dismantled and transported to my place for permanent setup. The floor is big enough for a full 'Irish' set, of 8 people, or really any 4 couple dance. I'm sure tonight there will be some swing on it as well. For those interested in duplicating my efforts, the technical info is below. I built it out of 11mm thick plywood, and it measures 2400mm by 2200mm (thats about 8' by 7'4" for the metrically challenged). The floor is raised on 4x2 treated pine, so the whole floor is weather proof. I had the ply cut into 4 sections of 1200X1100 (size dictated by the space in my friends car), which whilst not as rigid as having two sheets of 1200X2400, is held together with a lot of screws, and is quite stable. The base is comprised of 3 2400mm lengths of pine running along the long side, and using 6 900mm lengths of pine at the edges of each square of ply to provide rigidity. 2 at each end, and 2 in the middle creating a square divided into 4 parts. By cutting the cross peices to 900mm, I am leaving a gap large enough between the long peices, that I can use to lift the floor to move it. Originally I was intending to have a double base of 4x2, to give me a sprung floor, but finances denied me that pleasure. Next time. I am already planning on building a second floor, using thicker ply, and a sprung base, but thats for another month when I have more money.