The Dual Liner is the way to go! I haul bricks, C blocks, compactors, and scaffold Dual Liner has the best dent protection for those critical areas (the floor and the wheel wells). I would destroy a spray on in less than a year. I have had the dual liners for several years and they still look great and do there job well. I like that I can take the Dual Liner out to clean the truck too. The Dual Liner bed liner is the best bed liner I have ever owned!