What is the Best Hard Roll Up Tonneau Cover for Ford Ranger? This is a question many people ask when they are looking at different covers. While many people have their favorite hard top cover, it really boils down to your own personal preference. The truth is that your choice will be influenced greatly by the type of truck you have and where you live. The roll up truck bed covers can add extra space to allow your truck bed to be free and clear for maximum cargo space.