Selecting the appropriate gauge of expanded metal for your trailer gate is crucial for ensuring the security, safety, and longevity of your equipment and cargo. As a general guideline, 13 gauge (0.090 inch) expanded metal is the most commonly recommended choice for trailer gates. This gauge provides a balance of strength, weight, and cost-effectiveness, making it suitable for a wide range of applications, from hauling livestock to transporting construction materials. This article will provide a deep dive into selecting the best gauge for your specific needs.
Understanding Expanded Metal and Its Applications in Trailer Gates
Expanded metal is a versatile material created by slitting and stretching a metal sheet to form a diamond or other pattern. This process creates a strong, lightweight material ideal for a variety of applications, including trailer gates. When used in trailer gates, expanded metal offers several advantages:
- Security: It provides a visual deterrent and a physical barrier against theft.
- Ventilation: The open design allows for airflow, which is essential for transporting livestock or perishable goods.
- Strength: Properly chosen gauge offers significant structural integrity.
- Visibility: Allows for checking on cargo without opening the gate.
However, selecting the wrong gauge can lead to problems such as:
- Gate failure: A gauge too thin might buckle or tear under stress.
- Increased weight: A gauge too thick adds unnecessary weight, impacting fuel efficiency.
- Increased cost: Thicker gauges are generally more expensive.
Factors Influencing Gauge Selection
Several factors should be considered when determining the ideal gauge of expanded metal for your trailer gate:
Intended Use of the Trailer
The primary use of the trailer is perhaps the most significant factor.
- Livestock Trailers: 13 gauge is generally sufficient for containing most livestock, but for larger or more aggressive animals, consider 11 gauge (0.120 inch) for added strength.
- Utility Trailers: 13 gauge is often adequate for general utility trailers carrying equipment, but heavier materials or frequent use may warrant 11 gauge.
- Car Haulers: While the gate primarily serves as a ramp, 13 gauge is a standard choice to safely hold the load if necessary.
- Enclosed Trailers: Expanded metal gates might be used for ventilation and security. 13 gauge is generally adequate, but consider 11 gauge for added security.
Size and Design of the Gate
Larger gates require thicker gauges to prevent sagging and ensure structural integrity. The design of the gate, including any reinforcing supports, will also influence the gauge needed. A well-supported gate can utilize a slightly thinner gauge than one without reinforcement.
Type of Metal
The type of metal used for the expanded metal also impacts its strength. Steel is the most common and cost-effective choice, but aluminum offers weight savings and corrosion resistance. However, aluminum is generally weaker than steel, so a thicker gauge may be necessary to achieve comparable strength.
Environmental Conditions
If the trailer will be exposed to harsh weather conditions, such as salt spray or extreme temperatures, consider the corrosion resistance of the metal and the potential for degradation over time. Galvanized steel is a good choice for rust protection, but aluminum is naturally more resistant to corrosion.
Practical Considerations
Beyond the theoretical aspects, practical considerations are also crucial:
- Welding Capabilities: The thickness of the expanded metal will affect the ease of welding. Thicker gauges may require more skilled welding techniques.
- Cutting and Shaping: Thicker gauges are more difficult to cut and shape, which may impact the ease of installation.
- Budget: Cost is always a factor. While it’s important to choose a gauge that meets your needs, consider the overall cost of the project, including materials and labor.
Frequently Asked Questions (FAQs)
Here are some frequently asked questions to further clarify the selection of expanded metal gauge for trailer gates:
What is the difference between gauge and thickness when referring to expanded metal?
Gauge is a standardized measure of metal thickness. The lower the gauge number, the thicker the metal. Thickness is the actual physical measurement of the metal, typically expressed in inches or millimeters. Understanding both terms is important for accurate material selection.
Is it better to go with a thicker gauge than necessary?
While a thicker gauge offers increased strength, it also adds weight and cost. It’s best to choose a gauge that meets your needs without being excessively overbuilt. Overbuilding can decrease fuel efficiency and increase wear and tear on your trailer’s suspension.
Can I use expanded metal for a ramp on my trailer gate?
Yes, expanded metal can be used as a ramp on a trailer gate, especially when combined with a sturdy frame. However, ensure the gauge is thick enough to support the weight of the equipment being loaded. Consider adding additional support ribs for heavier loads.
How can I reinforce a trailer gate made with expanded metal?
Adding support bars horizontally or vertically can significantly increase the strength of the gate. Also, ensure the gate is properly attached to the trailer frame with strong hinges and latches.
What are the benefits of using aluminum expanded metal for a trailer gate?
Aluminum expanded metal offers weight savings and excellent corrosion resistance. It’s a good choice for trailers used in coastal areas or where weight is a concern. However, it’s generally weaker than steel, so choose a thicker gauge if using aluminum.
How do I prevent rust on my steel expanded metal trailer gate?
Galvanizing is the most effective way to prevent rust on steel expanded metal. You can also apply a rust-inhibiting primer and paint to further protect the metal. Regularly inspect the gate for any signs of rust and address them promptly.
What is the best way to attach expanded metal to the trailer gate frame?
Welding is the strongest and most common method for attaching expanded metal to a trailer gate frame. Alternatively, you can use self-tapping screws or rivets, but ensure they are properly sized and spaced to provide adequate strength.
Can I use expanded metal with different mesh patterns for a trailer gate?
Yes, different mesh patterns are available, but the gauge is more important than the mesh pattern in determining strength. However, tighter mesh patterns offer greater security.
How does the size of the expanded metal diamond affect the strength of the gate?
Smaller diamonds typically result in a stronger overall structure because there is less unsupported area. Larger diamonds may be lighter but less robust.
Is it possible to repair damaged expanded metal on a trailer gate?
Yes, minor damage can often be repaired by welding patches over the damaged areas. However, if the damage is extensive, it may be more cost-effective to replace the entire section of expanded metal.
What safety precautions should I take when working with expanded metal?
Always wear safety glasses and gloves when cutting, welding, or handling expanded metal. The sharp edges can easily cause cuts and abrasions. Use appropriate cutting tools and welding techniques.
Where can I purchase expanded metal for my trailer gate?
Expanded metal is readily available at most metal supply companies, hardware stores, and online retailers. Be sure to specify the gauge, type of metal, and sheet size you need. Comparing prices from different suppliers is always a good practice.