Understanding and accurately measuring the width of a trailer is crucial for safe towing, legal compliance, and preventing costly damages. The definitive answer: Trailer width is measured from the widest point of the trailer, excluding any legally required safety devices like side mirrors, turn signals, and marker lights. This measurement typically includes any protruding components like fenders, rub rails, and side-mounted accessories. This article will delve into the intricacies of measuring trailer width, providing a step-by-step guide and addressing frequently asked questions to ensure you have the knowledge to do it right.
Why Accurate Trailer Width Measurement Matters
Accurate measurement is more than just a formality; it’s essential for several reasons:
- Legal Compliance: Every state has specific regulations regarding maximum trailer width. Exceeding these limits can result in fines, impoundment, and delays.
- Safe Towing: Knowing your trailer’s width is vital for navigating narrow roads, bridges, and construction zones. Misjudging your trailer’s dimensions can lead to accidents.
- Storage and Parking: Accurately assessing width helps determine if your trailer will fit in your designated storage space or parking area.
- Permitting and Licensing: Overwidth loads often require special permits and escorts. Accurate width measurement is a prerequisite for obtaining these.
- Avoiding Damage: Protecting your investment by preventing collisions with fixed objects is paramount. Knowing your trailer’s exact width is the first line of defense.
Step-by-Step Guide to Measuring Trailer Width
Follow these steps for a precise trailer width measurement:
- Gather Your Tools: You’ll need a long measuring tape (at least 25 feet), a level, and a notepad with a pen or a digital device to record the measurement. A helper can also be beneficial, especially for longer trailers.
- Prepare Your Trailer: Park your trailer on a level surface. Ensure it’s relatively empty to prevent shifting during measurement. Engage the parking brake for safety.
- Identify the Widest Point: Visually inspect the trailer from front to back, paying close attention to protrusions like fenders, rub rails, side-mounted lights (excluding legally required safety devices), and any other accessories. These are the likely contenders for the widest point.
- Measure at the Widest Point: Using the measuring tape, extend it horizontally from the outermost point on one side of the trailer to the outermost point on the opposite side. Ensure the tape measure is level and taut.
- Confirm and Record: Double-check your measurement to ensure accuracy. Record the measurement in inches or feet and inches. For legal purposes, it’s often best to record in both.
Understanding What to Include and Exclude
It’s critical to know what features contribute to overall trailer width and which are exempt:
- Inclusions: Fenders, rub rails, side-mounted toolboxes, awnings (when extended), and any other permanent or semi-permanent attachments extending beyond the trailer body are typically included.
- Exclusions: Legally required safety equipment, such as side mirrors, turn signals, marker lights, and mud flaps (in some jurisdictions) are generally excluded from the width measurement. However, always consult local regulations to confirm.
- Special Considerations: Awnings and other extendable features must be in their retracted position when measuring for legal compliance. If transporting the trailer with an awning extended, it MUST be noted and compliant within state guidelines.
Common Mistakes to Avoid
Avoid these common pitfalls when measuring trailer width:
- Measuring on Uneven Ground: This will skew the measurement. Always use a level surface.
- Ignoring Protrusions: Don’t forget to account for fenders, rub rails, and other side-mounted items.
- Failing to Double-Check: Human error is common. Always verify your measurement.
- Misinterpreting Regulations: Don’t assume all safety devices are exempt. Consult local laws to confirm exclusions.
- Using an Inaccurate Measuring Tape: A damaged or stretched tape measure will provide incorrect readings.
Frequently Asked Questions (FAQs)
Here are some frequently asked questions to further clarify the process of measuring trailer width:
FAQ 1: What is the maximum legal width for a trailer in the United States?
Generally, the maximum legal width for a trailer in the United States is 8 feet 6 inches (102 inches). However, this can vary by state, so it’s essential to check local regulations.
FAQ 2: Do I need a special permit if my trailer exceeds the legal width limit?
Yes, trailers exceeding the maximum legal width typically require a special permit. Contact your state’s Department of Transportation for information on obtaining permits.
FAQ 3: How do I measure the width of a boat trailer?
Measure the width of a boat trailer at its widest point, including the fenders and any other structural components. Exclude legally required safety devices like lights.
FAQ 4: Does the measurement include the tires?
No, the tires themselves are generally not considered part of the trailer’s width measurement. The measurement focuses on the trailer body and its attached components.
FAQ 5: What should I do if I’m unsure whether a specific feature should be included in the measurement?
Consult with your local Department of Transportation or a qualified trailer professional. They can provide clarification based on specific regulations.
FAQ 6: Are there different measurement rules for different types of trailers (e.g., utility trailers, enclosed trailers)?
The general principle remains the same: measure at the widest point, excluding legally required safety devices. However, specific regulations might apply depending on the type of trailer and its intended use. Always consult local laws.
FAQ 7: Can I measure the trailer width myself, or do I need a professional?
You can measure the trailer width yourself using the steps outlined above. However, if you’re unsure or need a certified measurement for legal purposes, it’s best to consult a qualified trailer professional.
FAQ 8: What are the penalties for exceeding the legal trailer width limit?
Penalties can include fines, impoundment of the trailer, and legal action. The severity of the penalty depends on the state and the degree of the violation.
FAQ 9: How often should I check my trailer’s width measurement?
Check your trailer’s width measurement periodically, especially after making modifications or adding accessories. It’s also a good practice to verify the measurement before long trips.
FAQ 10: Where can I find my trailer’s width specification?
The trailer’s width specification is usually listed on the manufacturer’s documentation or a sticker affixed to the trailer itself.
FAQ 11: What happens if I accidentally damage something while towing an overwidth trailer without a permit?
You could face significant legal and financial repercussions. You may be liable for damages, subject to fines, and potentially face criminal charges, depending on the severity of the incident.
FAQ 12: Are side mirrors on the tow vehicle considered when measuring overall width?
No, side mirrors on the tow vehicle are not included when determining if the trailer is overwidth. These are related to the tow vehicle’s overall width compliance, not the trailer’s.
Conclusion
Accurately measuring trailer width is a critical aspect of responsible trailer ownership. By understanding the process, adhering to the guidelines, and consulting local regulations, you can ensure compliance, promote safety, and avoid costly mistakes. Remember, when in doubt, seek professional advice to guarantee accuracy and peace of mind.