I would like to suggest that you buy the larger mat - mine is 17 x 14 and it fits my ironing board perfectly. I use it for my quilting but I also use it to iron shirts - when ironing over buttons, the sink into the mat and it's wonderful. Also, my DH had embroidery on his work pocket and it pressed so flat, people at work asked him how he did that. (Like he would iron a shirt...)