thanks that will help

Could you cut the background edge pieces larger for the top and bottom. One triangle will overlap the next, but you should be able to trim to a straight edge.

I made a similar quilt that had top and bottom edges like your quilt. I simply bound them in that zig zag way and I love the look of it. It wasn't nearly as difficult as I thought it would be. I am off to work this morning but will attempt posting a pic tonight.

It seems I am not having any luck posting a photo. If you like, send me a PM with your email address and I'll send it that way. I will understand if you are reluctant to do that.

I like that quilt dunster I might get that . I fixed my 3-d quilt by adding two additional 3 inch triangles to each column on the top and bottom that will give me the look I need for attaching the boarder.