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.
When you measure truck bed length you may find that the exact number does not match any lengths listed on our product pages.
Your truck bed length is determined by the distance between the inside of your tailgate and the inside of the bulkhead.
Step 2 moving along your bed rail extend the measuring tape to the inside edge of the top of your tailgate.
That s because most truck and accessory companies round off their measurements to the nearest half foot.
Measure your truck bed length.
So if your truck bed measures 76 you can go with the product listed for a 6 5 foot bed.
Record this measurement and label that number width.