Had a poster made of the grandkids and really dislike the cheap poster frames but didn't want to spend a lot of $$ so I simply stuck the 20"x30" poster on 20"x30" foam board with mod podge, painted a couple of slats of wood and actually taped the foam board onto the slats and braided some string I had on hand for the hanger and BINGO! DONE!
MADE--Beautiful Matted Pictures. I have 3 16x20 black & white pictures in our livingroom that I get tons of compliments on all of the time--it makes me smile because they are cheap poster frames (the thick frame ones look nicer), and the mattes are hand made out of posterboard. It is all about printing the right the picture--Which by far was the most expensive part of the whole project.
THIS IS BRILLIANT! Come learn how to make a DIY picture frame any size you need WITHOUT ANY POWER TOOLS! No sawing or cutting required! Best hack ever. Full tutorial by Designer Trapped in a Lawyer's Body.