Yippee for foam-core!!!! It's the other thing that, like velcro, I can't imagine what we did before having it.
I took a few pictures of the process of attaching the mat to the velcro boards. All very simple, once I figured out the solution.
I purchased three boards that were 2' by 3'. I turned them width-wise across the mat and trimmed off the excess, so they were flush with the sides. Luckily for me, the three boards fit perfectly top to bottom, with a little space between.
|I used upholstery thread to sew through the mat and the board and carried long stitches behind. (not beautiful, but effective)|
|I made sure to get the stitches between the rows. I used a glover's needle and a thimble. I went down each side and across the top and bottom of the boards.|
|With the little space between, I can easily fold the mat for transportation.|
|Although you can't see a big difference, the mat hangs beautifully flat now - with a little help from some magnet strips across the middle and bottom boards.|