Simple CAD program

For work I need to mock up 2D floor plan for prospective clients. I would love to use Pages but it doesn't have (at least not that I have noticed) a scaling option. My boss uses Expert Office Design from 1992, I like it but to use it I have to use his old mac book and boot into OS 9.0. Is there an add-on for pages I could get to do scaling or is there a very simple (with a minimal learning curve) 2D scaling CAD program similar to Expert Office Design?

Thanks for your help.

Anybody? Did I post this in the wrong place?

I finally found one, MacDraft PE. So if someone ever needs one and this pops up in their google search they win. Thanks!

MacDraft is a great program that has been around since the 80s.