The value of the baking set with the pan, the mat and the cookie cutters is excellent. Unfortunately I didn't measure my oven inside... I read that the 1/2 sheet fits 2 beside each other in an oven, but alas, not in my oven. I haven't baked on them yet, but based on my other Fat Daddio products, I am sure they will be awesome which is why I bought the brand in the first place.