Again the tape measure should be in a straight taut line even with the top of the bed.
How to measure your truck bed for a topper.
Step 2 moving along your bed rail extend the measuring tape to the inside edge of the top of your tailgate.
Your truck bed length is determined by the distance between the inside of your tailgate and the inside of the bulkhead.
That s because most truck and accessory companies round off their measurements to the nearest half foot.
Record this measurement and label that number width.
When you measure truck bed length you may find that the exact number does not match any lengths listed on our product pages.
Step 1 place your measuring tape at the bulkhead of your truck bed.
Measure your truck bed length.