I bought the 'flat canvas' and stretched it myself with the aid of the clever and simple to use Imageworks framing system. Only took me about a half hour to go from rolled print to stretched, ready to hang picture! If you aren't all thumbs you can easily follow the video and it's simple step by step instructions. That said, the frames aren't cheap (but they are a lot less than buying the already framed version) so if you're a bargain hunter like myself, check out Imageworks, they will have what you need to stretch even the largest canvases!
If you need further help or information please visit our Online Help Center