Please note: I will be unable to ship items from December 26th to January 5th. Shipping will resume on January 6th. I purchased this at Costco about 3 years ago and have used it a few times. The size is measured flat, so please allow for some error as it is a manual measurement. Please purchase if you understand that this is a used item. I will compress the item as much as possible for shipping. Please be aware that there may be creases.