I think I would get my Joanns half price coupon and get new one no fun if have to fight with tools,

If you can't get it flat it will make great templates for patterns. I went to a place mat class for a one piece place mate and the teacher made her pattern from a used cutting mat. She makes lots of place mats.

I took one of my old ones and cut into a circle. I found a wood Lazy Susan at the thrift and made me a rotating mat. Works just as good as the expensive ones.

I'm interested in the answer to this one. I or I should say my DH left my mat on a table on our patio in 118* weather and it is now frilly also. I have tried everthing I can think of to flatten it to no avail. I bit the bullet and got a cheap one waiting for a 50% off sale at Joann's. Maybe a Christmas gift from my DH.
I had a lot of trouble cutting on the frilly one. Waiting for your ideas. MNM

MNM, If it is "frilly" or "Rufflely" I think it is to late. Just my opinion.

Boy! you got that right but I do like the idea of using it for templates. Thanks all. MNM

Good information, just when I need it.

I put my distorted cutting mat in my stove oven on about 150-200 degrees, and it turned out like brand new. i left it in the stove about 20 min. may take longer for yours.

I don't think my 59 x 42 mat will fit in mine. LOL

Same with me, but if you need new ones Hancocks of Paducah had the best price by far. Just got my new ones yesterday