My hubby made me an ironing board something like the "Big Boards". The top is rectangle and measures about 22 x 60. I absolutely love it. Basically he made it out of a half a piece of plywood, and then put cleats on the under side so it would fit my traditional ironing board. I then covered it with a couple of layers of discount fabric.
Although when it comes time to iron an shirt, there's no pointy end for the sleeves. Oh, well.