I am attempting to plot a site plan for a large single family home property (2 lots at 200'x329') to an ARCH D (24x36) sheet and have set up the paper space and a page template to fit this. I set up a new viewport inside the page template to take up all the open space. Our professor provided us the survey from which we're doing our drawings and has asked for us to plot in 1:20 scale, so I have input 1:240 (1" = 240") in the layout scale menu. The site plan to be plotted fits, but much too small to be acceptable. It takes up only maybe a third of the viewport, when it should fill the viewport (the sheet) for the most part. Any ideas what I could be doing wrong?Using ACAD 2008Pwrflpills2011-04-15 17:50:37

Consider this.  At a scale of 1"=20' if you were able to plot right up to the edges of your 24"x36" sheet the largest object you could draw would be (20)*(24)=480 x (20)*(36)=720....480'x720'.  Your lot is 200'x329'.  You would be closer to taking up one-half of your sheet then you would taking up one-third of your sheet.  Follow me?An object that took up only one-third of your sheet would be roughly 160'x240'.John Connor2011-04-15 17:52:29

Ok, what you say makes sense. I'm thinking there's been some miscommunication somewhere along the line and I'll double check with the prof on the desired scale.

It is possible that you inadvertently changed your viewport scale without knowing it.  Always lock your viewport display after setting the scale to avoid the problem.