Though many kinds of truck bed liners exist, most liners fall into two categories: drop-in liners and spray-on liners. Each kind of bed liner has its own set of pros and cons. When choosing a bed liner, it is important to determine what type of cargo you will primarily be hauling in your truck. This will help decide the amount of protection you will need from a bed liner.
Truck bed liners that are pre-molded are called drop-in liners. These are great because they usually have thick, molded bodies that provide protection against damage to your truck and are relatively easy to install. It is important to find a bed liner that fits your truck perfectly to avoid the liner shifting around and causing more damage to your truck.
Another type of truck bed liners includes the spray-on liners. As its name suggests, these liners adhere to the actual body of the truck and typically cannot be removed once applied. These kinds of liners work great for hauling lighter cargo loads and usually do a good job of preventing minor dents.