There is a measuerment tool. Also. you can set the grid to measuer in feet. But if you want to keep the grid as is, then basicaly figure 1 grid square = 1 foot.
But yeah, there's a measuerment tool you can use to set your measurements more exact.
Dave Baer
Professor of Digital Arts
Digital Media Arts College
Boca Raton, Florida
dbaer@dmac.edu