If I read you correctly, you want to make a page with a bunch of boxes on it?
You could use the Guides available when you have View > Rulers turned on. Just drag the guides out from the top and side to where you want them. They won't show up in the final product, but you could A) follow them with the Brush Tool to make them permanent or B) hit the PrtScrn button and copy-n-paste to get your finished product. To change the color, you could just use Hue & Saturation to Colorise it. You could end up with something like this:
That took about 1 minute to do, but I didn't bother with trying to make all of the lines equidistant from one another. You'd want to spend a little more time doing it.