For your main dish.

Comes in two sizes:
* Standard 15” x 15" is a 15" square when flat; large enough to hold a 13” pie plate; handles are 13”.
* Wide 15" x 16.5" is 15" L x 16.5" W when flat with a 2" center opening; large enough to hold a 9" x 13" roaster; handles are 13" long.