As you can see there, it says, Autocad Architecture Metric CTB Model Template.
Now I'm going to use a metric CTB template, that one there, because that's a color table drawing using metric units. Now the reason for that is, depending on what units you're using, and depending on what part of the world you're in, we need to specify a certain template first, so you go to your start screen in Autocad Architecture like so, and in the start drawing here, can you see where it says Templates? Click on the down arrow here like so, and you'll see that there's all these different templates available. So you'll notice, I've got Autocad Architecture open right now, but I haven't got a standard Autocad Architecture drawing open, ready to use. Things like columns and beams, and in turn, you will need a column grid to place your columns on in order to space them effectively in your Autocad Architecture model. Now, you may find, when you're working in Autocad Architecture that you need to develop a structure to build your architecture around. We're starting a new chapter now in our Autocad Architecture Essential Training Course, and what we're going to look at is structural design.