How To Measure Truck Bed Size

Ever tried to buy a ton of mulch, only to realize it won't all fit in your truck bed? Knowing the precise dimensions of your truck bed is more than just a fun fact; it's crucial for hauling cargo safely, planning DIY projects, purchasing the right accessories like tonneau covers or bed liners, and even determining resale value. Don't rely on guesswork or vague descriptions – accurate measurements empower you to make informed decisions and avoid costly mistakes.

Whether you're a seasoned truck owner or a first-timer, understanding how to properly measure your truck bed's length, width, and depth will save you time, money, and potential headaches. It ensures you can confidently transport furniture, building materials, recreational equipment, and anything else life throws your way. After all, a truck's utility is maximized when you know its capabilities.

What are the common questions about truck bed sizes and how to measure them?

How do I accurately measure the length of my truck bed?

To accurately measure your truck bed length, extend a measuring tape from the inside of the front of the bed (usually where the bed meets the cab) to the inside of the tailgate when the tailgate is closed. Make sure the tape measure follows the flattest line possible, avoiding any curves or obstructions.

Measuring your truck bed correctly is important for determining what size loads you can safely carry, choosing the right bed accessories like tonneau covers or bed liners, and ensuring any cargo you purchase will fit. Different truck models, even within the same brand, can have significantly different bed lengths. Double-checking your measurements will save you time, money, and potential headaches. For the most accurate measurement, use a metal measuring tape that extends far enough to cover the entire bed length in one go. Avoid using flexible cloth measuring tapes, as they can stretch or sag, leading to inaccurate readings. Also, if your truck bed has a spray-in bed liner or a drop-in liner, measure from the surface of the liner, as this affects the usable space. If the front of your truck bed angles, be sure to measure from the lowest point of that angle.

What's the best way to measure the width of a truck bed, especially between the wheel wells?

The best way to measure the width of a truck bed, particularly between the wheel wells, is to use a retractable metal measuring tape. Extend the tape measure horizontally from one interior sidewall to the other, ensuring the tape is taut and level. For the width between the wheel wells, measure from the inside edge of one wheel well housing to the inside edge of the opposite wheel well housing, keeping the tape parallel to the truck bed floor.

Measuring the truck bed width accurately is crucial for various purposes, such as determining cargo capacity, selecting appropriate bed liners or covers, and ensuring that items you intend to transport, like plywood or drywall, will fit. Using a metal measuring tape is preferred over fabric tapes because metal tapes are less prone to stretching or sagging, leading to more precise measurements. Be sure to take multiple measurements at different points along the length, as the width may vary slightly due to the bed's design. When measuring between the wheel wells, accuracy is paramount, especially when transporting items that need to fit snugly. Make sure the measuring tape is flush against the inside of each wheel well housing for the most accurate reading. Avoid estimating or rounding down, as even a small difference can prevent items from fitting properly. Consider having a second person assist in holding the tape measure, particularly for longer truck beds, to maintain consistent tension and ensure the tape remains level throughout the measurement process.

How do I measure the depth of a truck bed (from floor to top rail)?

To measure the depth of your truck bed, simply extend a measuring tape vertically from the bed floor to the top of the bed rail. Ensure the tape is perpendicular to the bed floor for an accurate reading, and take the measurement from multiple points along the bed's length to account for any variations or inconsistencies in the bed floor or rail height.

To ensure you get the most accurate depth measurement, make sure your truck is parked on a level surface. Uneven ground can skew your results. If your truck bed has a bed liner, measure from the top of the bed liner to the top of the bed rail; otherwise, measure directly from the metal bed floor. Remember that aftermarket accessories like tonneau covers, ladder racks, or bed caps are not part of the factory-defined bed depth, so these should not be considered when determining this dimension for things like cargo capacity calculations. Finally, it's always a good idea to double-check your measurements, and compare your findings with the manufacturer's specifications, if available. Truck bed dimensions can vary slightly even within the same model year due to production variations or trim levels. If precise measurements are critical for a specific purpose, such as fitting a camper shell or building custom storage solutions, consulting with a professional installer or a dealer might be beneficial.

Does the truck bed size listed by the manufacturer include the space above the wheel wells?

No, the manufacturer's listed truck bed size, specifically the length and width, typically refers to the maximum usable space *between* the bed walls and *before* the tailgate, *without* factoring in the intrusion of the wheel wells. The wheel wells reduce the available width at a certain height within the bed.

The listed dimensions give you a general idea of the bed's overall capacity, but understanding the wheel well placement is crucial for practical use. If you plan on hauling wide or bulky items, you need to consider the reduced width between the wheel wells. Items wider than this space won't sit flat on the bed floor unless placed above the wheel wells or the tailgate is left open. To get a complete picture of the bed's usable space, it's essential to measure the width *between* the wheel wells at their widest point. This will determine the maximum width of objects that can lie flat on the bed floor. Also, consider the height of the wheel wells if you plan on stacking cargo.

What measuring tools are most accurate for determining truck bed dimensions?

For accurately determining truck bed dimensions, a metal measuring tape, preferably one that is at least 25 feet long, is the most accurate and practical tool. A laser distance measurer can also be used, especially for longer beds, but it's important to verify its accuracy and use it on a clear, unobstructed surface.

Using a metal measuring tape ensures you get precise measurements, minimizing the risk of stretching or inaccuracies that can occur with cloth or flexible tapes. The metal material also allows you to easily hold the tape taut for straight and accurate readings. When measuring, it's crucial to start at a clear, defined point (like the inside edge of the bulkhead) and extend the tape to the opposite point, keeping the tape level and straight along the bed floor or sidewall. While laser distance measurers offer the convenience of quick, long-distance measurements, they can be affected by environmental factors like sunlight and surface reflectivity. Therefore, using a laser measurer is best done in controlled conditions or alongside a metal tape measure to verify the results. Always take multiple measurements and average them to further increase accuracy, especially when dealing with irregularly shaped areas or items within the bed.

How do I account for bed liners or tonneau covers when measuring my truck bed size?

When measuring your truck bed size, you should measure the usable space *inside* the bed liner or tonneau cover, with the cover in its open or retracted position if possible. The bed liner or tonneau cover effectively reduces the available space compared to the bare metal bed, so internal measurements are critical for accurate assessments.

While the exterior dimensions of the bed remain constant, the interior dimensions are what matter for hauling cargo. Bed liners, whether spray-in or drop-in, take up a small amount of space along the walls and floor of the bed. Similarly, a tonneau cover, when closed, defines the maximum height of items you can transport without interference. To get a precise measurement, run your tape measure along the inside of the bed liner, or beneath the lowest point of the tonneau cover rails or frame. Remember, it’s always best to err on the side of caution and take measurements at multiple points within the bed. Beds are not always perfectly square, and slight variations can occur. Taking several length and width measurements, especially near the tailgate and cab, can help you determine the minimum usable space and avoid unpleasant surprises when loading cargo. The usable height may be defined by the lowest point of a retracted tonneau cover, or the closed cover itself if you plan to haul covered.

Is there a standard location to start and end my measurements for truck bed length?

Yes, the standard location to measure truck bed length is from the inside front of the bed (typically the bulkhead, the wall separating the bed from the cab) to the inside of the tailgate when it is closed. This provides the usable length of the cargo area.

To ensure accuracy, always measure along the bed floor, not along the top rails. Also, be aware that some truck beds have variations in their design that might affect the true usable space. For example, some beds have wheel well intrusions that narrow the space at certain points. It's useful to consider the narrowest points if you plan to carry wide items.

Keep in mind that truck bed lengths are often given in nominal terms. A "6-foot bed" might not measure exactly 6 feet when measured precisely. These nominal lengths are generally close enough for most purposes, but if you're trying to fit something very specific, it's best to take your own measurements to be sure. Consider measuring both along the floor and at the bed rails to check for any differences due to bed design.

And that's all there is to it! Measuring your truck bed is a simple task that can save you a lot of headaches down the road. Thanks for taking the time to learn, and we hope this guide helps you find the perfect fit for your next project or haul. Come back and visit us again soon for more helpful tips and tricks!