I've got a 36" square wall hanging on the wall above my desk. I put a hanging sleeve on it -- I'm 99% certain I used the
AQS guidelines Then I went to the hardware store and bought to 12" 'mending plates', a package of 3M hanging tapes, a wide pocket rod and some magnets. I wrote a blog post about it
HERE. It didn't take me long to do, there are no holes in the wall and I'll be able to switch out the quilt.