Oh.... yeah AutoCad is darn great for that. And that makes lots of sense, now that you say it. I use it that way more hours a week than I care to think about. I wonder why others haven't figured this out. I'm not sure but I think Carrara (At least from my old Raydream experience, which was the program before it was Carrara.) can do this. I think maybe you might want to post a new thread asking what cheaper modeler would let you enter sizes numerically. I don't really know much about that. I'll break out my copy of Carrara I got from a magazine and let you know. I wasn't lucky enough to find one of the euro mags with Cinema4D on it, so I don't know about that one. Shoot, InfniD used to let you do that, and that was ten years ago.