Tonneau covers, like pickup trucks, come in many different shapes and sizes. Consequently, you can’t just jump online and order any tonneau cover and expect it to fit your pickup correctly. You need to know all of the measurements of your bed, not just how long it is. Even ordering by pickup model can yield uncertainty and a cover that won’t fit because of different bed configurations within some models. This might sound like a no-brainer, but incorrect covers are ordered often, and they’re not cheap to ship back. When you decide on the tonneau cover you want, have all of the following information available when you get ready to order—bed length, bed width, make, model, and any information pertaining to the model that might be important for a good fit. That way you can avoid confusion and get the perfect cover for your truck.