Hi thanks for the reply, I will check out CADLearning, I had a quick look but it didnt seem to have much in the way of 3D software mainly Autocad and Desktop Arch. Could be mistaken so will check again. One thing I am struggling to work around is creating a roof. The method you described was effective but followed a simple single cross sectional profile. My roofs have various ridge hieghts and intersect each other at different hieghts. Any pointers on the net for some tips. I have been trawling for a few days now. Cheers Peter (hope the cold is better)