I add all the borders before doing my quilt "sandwich"...meaning adding the batting and backing in preparation for quilting. I will put some links at the end of my post about borders, as if you don't measure out and do them right, it can be such a headache...I know from experience...lol...Also, you can do more than one border, and make them different widths to make the quilt larger for your bed...I will put some links for that as well...
http://www.dummies.com/how-to/conten...ul-border.html
http://quiltbug.com/articles/borders.htm
http://www.ohfransson.com/oh_fransso...-sandwich.html
http://www.creativequiltgirl.com/wp-...02-11-pic2.jpg
http://alyciaquilts.blogspot.com/201...-knocking.html
http://www.quiltville.com/borderhints.shtml
Good luck to you,
Kif