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How to Measure a Truck Bed

When it comes to buying accessories or making modifications for your truck, knowing the exact measurements of your truck bed is crucial. Whether you need to install a bed liner, purchase a tonneau cover, or haul large items, having accurate measurements will ensure a perfect fit. In this guide, we will walk you through the step-by-step process of measuring your truck bed.

Step 1: Gather the Necessary Tools

Before you begin measuring your truck bed, gather the following tools:

  • Tape measure
  • Paper and pen

Step 2: Open the Tailgate

Start by opening the tailgate of your truck. This will give you access to the full length of the bed and allow for more accurate measurements.

Step 3: Measure the Length

Using the tape measure, start from the inside of the bulkhead (the front of the bed) and extend it all the way to the inside of the tailgate. Take note of the measurement in feet and inches. This will give you the length of your truck bed.

Step 4: Measure the Width

Next, measure the width of your truck bed. Place the tape measure across the widest part of the bed, usually between the wheel wells. Again, write down the measurement in feet and inches.

Step 5: Measure the Depth

To measure the depth of your truck bed, start from the inside of the bed and extend the tape measure vertically to the top edge of the bed. Make sure to measure from multiple points along the bed to account for any variations in depth. Jot down the measurements for reference.

Step 6: Calculate the Volume

If you need to know the volume of your truck bed, you can calculate it using the measurements you have taken. Multiply the length, width, and depth measurements together to get the total volume in cubic feet. This can be helpful when determining how much cargo your truck bed can hold.

Step 7: Consider the Shape and Style

Keep in mind that truck beds can come in different shapes and styles, depending on the make and model of your truck. Some beds may have additional features like toolboxes or bed extenders, which can affect the measurements. Take note of any unique characteristics of your truck bed that may impact the fit of accessories or cargo.

Step 8: Double-Check the Measurements

Once you have taken all the necessary measurements, it’s important to double-check them for accuracy. Mistakes in measurements can lead to ill-fitting accessories or cargo, so it’s worth the extra effort to ensure precision.


Measuring your truck bed is a simple yet essential task that will help you make informed decisions when it comes to purchasing accessories or hauling cargo. By following these step-by-step instructions, you can confidently measure your truck bed and ensure a perfect fit every time.

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