Often people looking at shipping container homes are on a tight budget. On top of that they don’t want to go and do a training course as well as buy something like Autocad which may be all the bells and whistles but with shipping containers you already have fixed dimensions. This pretty much means that your working “inside a box” which sort of limits the amount of mistakes you can make construction wise as it will still need to fit into a 20ft or 40ft container generally.
But what I did come across today was this Google sketch up video someone has put together showing how it can be done and with Google sketch up being free and quick to learn how to use would be a good start for people thinking about container buildings. I am still trying to find the time to get on there myself to start putting models together for different designs that I can give away on the containerliving.net but right now over worked and a busy family life leaves very little time to get started on drawing up homes.