Because my boats are almost all varying scales, I had to pick one for the Pond Dock. I chose 1:12, because there seems to be more "accessory" items available in that scale. When finished, the platform will be 12" by 42" with 2-4"X30" docks and 1-7"X30" dock leading out from it. It will have 2" think styrofoam under it for floatation.