How to measure the dimensions of a dock trailer?

Jul 16, 2025

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Hey there! If you're in the business of transporting goods, especially in a dock environment, you know how crucial it is to have the right dock trailer. As a dock trailer supplier, I've seen firsthand how important it is to accurately measure the dimensions of a dock trailer. In this blog, I'll share some tips on how to do just that.

Terminal 30Ft Skeleton Semi Trailer With Twist LocksTerminal Port Skeleton Container Semi Trailer

Why Measuring Dock Trailer Dimensions Matters

Before we dive into the how-to, let's talk about why measuring the dimensions of a dock trailer is so important. First off, it ensures that the trailer fits properly at the loading dock. A trailer that's too wide or too long can cause all sorts of problems, like blocking other trailers or not lining up correctly with the dock door. This can lead to delays in loading and unloading, which can cost you time and money.

Secondly, accurate measurements are essential for ensuring the safety of your operations. If a trailer is overloaded or doesn't fit properly, it can pose a risk to your employees and the goods being transported. By measuring the dimensions correctly, you can make sure that the trailer is used within its safe operating limits.

Tools You'll Need

To measure the dimensions of a dock trailer, you'll need a few basic tools. Here's what you'll need:

  • Tape Measure: A good quality tape measure is essential for taking accurate measurements. Make sure it's long enough to measure the length and width of the trailer.
  • Level: A level will help you ensure that the trailer is sitting flat and level. This is important for getting accurate measurements.
  • Marker or Chalk: You'll need a marker or chalk to mark the measurements on the trailer.

Step-by-Step Guide to Measuring a Dock Trailer

Now that you have the tools you need, let's get started with the measuring process. Here's a step-by-step guide:

Step 1: Park the Trailer

Park the dock trailer on a flat, level surface. Make sure it's parked straight and that the wheels are chocked to prevent it from moving. Use a level to check that the trailer is sitting flat and level.

Step 2: Measure the Length

To measure the length of the trailer, start at the front of the trailer and extend the tape measure to the back. Make sure the tape measure is straight and that it follows the centerline of the trailer. Record the measurement in feet and inches.

Step 3: Measure the Width

Next, measure the width of the trailer. Start at one side of the trailer and extend the tape measure to the other side. Measure the width at the widest point of the trailer, usually at the wheels. Record the measurement in feet and inches.

Step 4: Measure the Height

To measure the height of the trailer, start at the ground and extend the tape measure to the highest point of the trailer. This could be the top of the roof or the top of a load. Record the measurement in feet and inches.

Step 5: Measure the Wheelbase

The wheelbase is the distance between the center of the front axle and the center of the rear axle. To measure the wheelbase, use the tape measure to measure the distance between the two axles. Record the measurement in feet and inches.

Step 6: Measure the Kingpin Setting

The kingpin setting is the distance from the center of the kingpin to the center of the rear axle. To measure the kingpin setting, use the tape measure to measure the distance between the two points. Record the measurement in feet and inches.

Step 7: Mark the Measurements

Once you've taken all the measurements, use a marker or chalk to mark them on the trailer. This will make it easy to refer to the measurements later on.

Common Mistakes to Avoid

When measuring the dimensions of a dock trailer, there are a few common mistakes that you should avoid. Here are some of the most common mistakes:

  • Not Using a Level: If the trailer is not sitting flat and level, your measurements will be inaccurate. Make sure to use a level to ensure that the trailer is level before taking any measurements.
  • Measuring at the Wrong Points: Make sure to measure the length, width, and height at the correct points. For example, when measuring the width, make sure to measure at the widest point of the trailer.
  • Not Recording the Measurements: It's important to record the measurements as you take them. This will make it easy to refer to the measurements later on.

Our Dock Trailer Offerings

At our company, we offer a wide range of dock trailers to meet your needs. Whether you're looking for a Terminal Port Skeleton Container Semi Trailer, a 3 Axles Port Used Container Chassis Trailer, or a Terminal 30Ft Skeleton Semi Trailer with Twist Locks, we've got you covered.

Our trailers are built to the highest standards of quality and safety. We use only the best materials and the latest manufacturing techniques to ensure that our trailers are reliable and durable. And because we're a direct supplier, we can offer you competitive prices and excellent customer service.

Conclusion

Measuring the dimensions of a dock trailer is an important part of ensuring that it fits properly at the loading dock and that it's used within its safe operating limits. By following the steps outlined in this blog and avoiding the common mistakes, you can take accurate measurements and make sure that your dock trailer is a good fit for your operations.

If you're in the market for a new dock trailer, we'd love to hear from you. Contact us today to learn more about our products and to discuss your specific needs. We're here to help you find the perfect dock trailer for your business.

References

  • "Trailer Dimensions and Weights." Federal Motor Carrier Safety Administration.
  • "How to Measure a Trailer." Trailer Life Magazine.

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