Ha ha Ken that is a better description and the picture sure helps
it sounds to me like the crucks are round, because you refer to their diameters top and bottom, but here again I take nothing for granted maybe you are referring to their square measurement,
I believe the biggest challenge here would be to make all the crucks's curves similar so that the whole building would be symetrical, here again I would produce a pattern out of light material that one could lay on the rough blank as he worked to check the progress of the journeyman or tradesman
It would be nice to have yet just a bit more information about the finished appearance, especially if the crucks are flat on one side, or square, or round
