Applying some of the knowledge we gained while painting Brutus, we used a 50-75 percent overlap on the liner as we sprayed. This ensures that no portion of the bed goes unprotected. With the lower portion of the rear cab and sides sprayed, we then focused on the floor. Knowing the floor would see the most abuse, we focused a lot of our attention there. If you plan accordingly like we did, you may have enough leftover liner to spray an additional coat to the bed floor.