Framing odd sized posters
 

I have several odd sized posters I need to frame. They are not standard poster size, so I'd have a problem going to michaels and such, to find a way to frame them.
I don't need anything to fancy, just enough so they don't get bent, or torn, etc.
Any suggestions?

What are the dimensions? Are they square or rectangular, or just really big posters - ie Movie billboard size?

Not knowing the sizes or dimensions, would adding matting over the top of them work to make them a more traditional size?

You can always go to an Aaron Brothers or Custom Framing. You can either have them do it, or if you're handy, you can buy the neccessary materials there and do it yourself. Art stores too, carry framing materials sometimes.

sizes probably range from 18x36 to 24x50
There propaganda posters from the cultural revolution in China actually..

I have framed several posters, and all of them were oddly sized. I went to Michaels to get the framing materials. The frame came two pieces to a package.....so you would get two sides in a package. You can buy whatever size you need for the particular length and width of your poster.