Snoopy Flannel.

hate to be the bearer of bad news but I don't think you're going to like it, the color will show thru your blocks and at the edge of the blocks you'll see it and it will be hard to tell what's what.
now if you didn't want my opinion just chunk it out! ;)

I have to say the same thing. The pattern will upset your vision. Bummer because it is cute.

Perfect way to hang the wall, but I'd prefer a plain, light color for the reasons the others gave. Yours looks very nice on the tension rod. I used cream fleece for mine.

Try it out, if you find you don't like it for the reasons listed above, use it for backings--its a really cute fabric.

The fabric is adorable!