Originally Posted by irishrose
The only ones I have seen have been rectangles. Would 5 x 9 be big enough for your fabric? Have you put Shadowbox in the search box? I saw one a month or so ago that was very nice. Squares - I would think at least 6 1/2.
Here's one
http://www.quiltingboard.com/t-104960-1.htm
That was awesome using the rectangles!