How to scale a drawing?

Thank you Dave!
When I went to school for engineering we didn’t have computers…everything was on the prehistoric drafting tables!
I suppose when I’m working with a large warehouse, I’d need to choose a large paper style to fit items in a 1:1 scale…in SketchUp instead of Layout? Then do the print at a set scale?
OK…my brain just digested your point…and I get it!
Thanks again…