If you’re planning to fit your pickup with a truck bed liner, toolbox, bed rails, tonneau cover, truck cap, or even certain types of nerf bars, then you’ll need to know the exact measurements of your truck bed for the right fitment. The first thing to look at when measuring your truck bed is the type of truck you have. There are four main truck styles on the market:
- Side step or flare side
- Regular cab
- Extended cab
- Four-door crew cab
Once you know the style, the next step is to measure the truck bed length. This is determined by the distance between the inner wall of the bulkhead and the inner side of your tailgate. When you measure this distance, you might find out that your total length doesn’t exactly match fitment sizes on some product pages. This is due to many truck parts companies rounding up measurements to the closest half-foot. For example, if you find that your truck bed is 76 inches, you can get a product made for a 6.5-foot bed.
Measuring Your Truck Bed For a Toolbox
The first step to measuring your truck for a toolbox is to find the width between your bed rails. Take a measurement from the outside of one rail to the outside of the other.
When you look for toolboxes, you’ll find two length measurements. One is the wider top length that sits on top of the bed rails and the other is a narrower base length that fits inside the rails.
The next step is measuring the height of the truck bed walls. This is the distance from the floor of the bed to the top of the rails. That will tell you the maximum toolbox height that you can install. Standard-size toolboxes won’t necessarily go all the way to the floor, but you might run into oversized boxes that are taller than your bed.
The final step is finding the distance between your bulkhead and wheel wells.
Typically, a full-size truck won’t have any issues with clearance vs. midsize trucks. One thing to remember is that if you have a truck with flared sides or steps, you’ll need a narrower toolbox.
Measuring Your Truck Bed For a Tonneau Cover
Take a measuring tape and stretch it from the bulkhead of your truck to the inside edge of your tailgate. Note the measurement in feet not inches. Most bed length numbers are rounded off within a few inches of the actual length. For example, a Ford F-150 short bed has an actual length of 67.1 inches, but the advertised length is five feet and seven inches, or 67 inches.
Another thing to look out for is if you have a tailgate liner or an over the rail bed liner. If you have the former, you’ll need to deduct the thickness of the liner from your total measurement. Over the rail bed liners will make it difficult to install most tonneau covers without cutting it.
Measuring Your Truck Bed For a Bed Liner
Measuring for truck bed liners is a little more complicated depending on the type you choose. Many sellers will allow you to enter the specifications of your truck to get the right size. If you want to do it yourself, you’ll need to measure the truck bed in inches at the longest points for width, length, and depth. Multiply the length by the width, then add the length plus the width and multiply by two. Add two inches to the depth and multiply the total to the previous number.
If that seems complicated, then you’ll be glad to know that you can get the best truck bed liner and a fully custom fit with DualLiner. Four or five interlocking pieces perfectly fit your truck and are made to your bed’s exact specifications.
The DualLiner Difference
If you own a full-size Ford, RAM, Chevy or GMC truck, then you can get a custom-designed bed liner that matches your exact truck bed. The interlocking bed liner technology makes sure that every inch of your truck bed is covered and protected. It even allows water to escape through your truck bed drain holes, which means no future issues with rust or water damage. DualLiner bed liners are designed to last as long as your truck.