PS - If you order 1' 10" x 3' 4", it's $44.95 and you could cut it in half to get two. Maybe go in with a friend, or have one for home and one for travel, if you keep a travel kit package and want one that big to go in it. That'd make it $19.10 each after the discount.
Also - many people iron directly on these. I cannot tolerate wool against my skin, so slipped the small one in an old pillow case. The extra bonus is that I can just take the case off to wash. The one on my Big Board is obviously covered by the cover.