F150 composite cab corners that will never rust manufacturers typically change bed sizes when they introduce a new model year.
How to measure your truck bed for a camper shell.
Measure the width of the truck bed from the inside of the side wall to the other side wall.
Weigh your truck at a cat scale and calculate your available payload by subtracting your truck s weight from the gvwr posted with your truck.
We decided to place a plywood platform base on the bed of the truck to provide a nice level foundation to build the platform on and by dividing the platform base into 3 sections it makes it easier to fit into the bed and remove if needed with the camper shell still on.
This is needed to ensure that the camper shell will clear the top of the truck cab by at least 6 inches to compensate for movement.
Measure your truck bed length and width dimensions as well as the height of the truck cab from the front floor on the truck bed.
Moving along your bed rail extend the measuring tape to the inside edge of the top of your tailgate.
Record the measurement in inches.
Divide the number of inches by 12 to determine the length of your truck bed in feet.
Write the measurement down.