My husband made me an ironing top 22x50 out of plywood. It fits over my standard ironing board. I made an ironing board cover out of very heavy muslin (purchased at WalMart - they have different weights). I made it like a standard ironing board cover, and ran cord through a sewn channel around the edge, so I can remove the cover easily when it wears out. It works great and was very easy to make.