The standard upper deck height of a step deck trailer (also known as a drop deck trailer) typically sits between 36 and 38 inches (91.4 to 96.5 centimeters), while the lower deck usually measures around 24 inches (61 centimeters). This difference in height allows for the transportation of taller freight that would exceed legal height limits on a standard flatbed.
Understanding Step Deck Trailers: A Detailed Overview
Step deck trailers are specialized trailers designed to haul freight that exceeds the height limitations of a standard flatbed trailer. Their defining feature is the “step” or “drop” in deck height, creating a lower platform to accommodate taller loads. This design significantly expands the types of cargo that can be transported legally and efficiently.
The Advantages of Using a Step Deck
The primary advantage of a step deck is its ability to accommodate over-height loads. By lowering the cargo’s center of gravity, it also enhances stability during transit. Furthermore, step decks often come equipped with features like ramps and winches, facilitating easier loading and unloading, especially for heavy machinery and equipment.
Key Dimensions of a Step Deck
Beyond the deck heights, several other dimensions are critical to understand:
- Overall Length: Typically 48 to 53 feet.
- Upper Deck Length: Usually 10 to 11 feet.
- Lower Deck Length: Usually 37 to 42 feet.
- Width: Standard legal width is 8.5 feet (102 inches).
- Legal Height Limit: Varies by state but generally around 13.5 feet.
Frequently Asked Questions (FAQs) About Step Deck Trailers
Here are 12 frequently asked questions that provide further clarity and insight into the world of step deck trailers:
FAQ 1: What types of freight are commonly transported on step deck trailers?
Step deck trailers are ideal for hauling a wide range of over-dimensional freight, including:
- Machinery and equipment (construction, agricultural, industrial)
- Large vehicles
- Pre-fabricated building components
- Crated goods that exceed flatbed height limits
FAQ 2: How does the deck height affect legal height restrictions?
The lower deck of a step deck trailer allows for hauling freight that is taller than what would be permissible on a standard flatbed. By lowering the load, the overall height of the cargo remains within the legal height limits enforced by state and federal regulations. Always consult the relevant regulations for each jurisdiction the trailer will be travelling through.
FAQ 3: What is the weight capacity of a standard step deck trailer?
The typical weight capacity of a step deck trailer ranges from 42,000 to 48,000 pounds (19,051 to 21,772 kilograms). However, this can vary depending on the trailer’s construction, axle configuration, and applicable regulations. It’s crucial to check the specific trailer’s weight rating before loading.
FAQ 4: Are permits required for hauling over-dimensional loads on a step deck?
Yes, permits are often required when hauling loads that exceed legal dimensions (width, height, length, or weight). The specific requirements vary by state and can include pilot car escorts, route restrictions, and time-of-day limitations. Always obtain the necessary permits before transporting over-dimensional freight.
FAQ 5: What are the different types of step deck trailers available?
While the basic design remains the same, there are variations of step deck trailers, including:
- Standard Step Deck: The most common type, with a single drop in deck height.
- Double Drop Deck: Features two drops, allowing for even taller loads.
- Extendable Step Deck: Offers adjustable length for added versatility.
FAQ 6: How does the loading and unloading process differ compared to a flatbed?
The loading and unloading process can be similar to a flatbed, but the step in the deck presents a unique challenge. Ramps, forklifts, or cranes are commonly used to move freight onto and off the trailer. Winches and tie-down straps are essential for securing the load.
FAQ 7: What safety considerations are specific to step deck trailers?
- Load Securement: Ensuring the load is properly secured is paramount. Use appropriate tie-down straps, chains, and tarps.
- Height Awareness: Be mindful of overhead clearances, especially bridges and tunnels.
- Weight Distribution: Distribute the weight evenly to prevent instability.
- Inspection: Regularly inspect the trailer for any signs of damage or wear.
FAQ 8: What are the typical rates for transporting freight on a step deck trailer?
Rates for step deck transportation are generally higher than those for standard flatbeds due to the specialized equipment and the potential for over-dimensional loads. Factors influencing rates include distance, weight, dimensions, and the need for permits and escorts.
FAQ 9: Can a step deck trailer be used to transport standard flatbed loads?
Yes, a step deck trailer can be used to haul standard flatbed loads. However, it’s important to consider the added expense of using a specialized trailer for a routine load. The higher deck height may also make loading and unloading slightly less convenient.
FAQ 10: What are the advantages of using a step deck trailer over a lowboy trailer?
While both are designed for hauling over-dimensional loads, step decks are generally preferred for taller but less heavy loads. Lowboy trailers, with their extremely low deck height, are better suited for very heavy and tall equipment. Step decks offer a balance between height accommodation and overall versatility.
FAQ 11: How do I choose the right step deck trailer for my needs?
Consider the following factors when selecting a step deck trailer:
- Load Dimensions: Determine the maximum height, width, and length of your typical freight.
- Weight Capacity: Ensure the trailer can handle the weight of your cargo.
- Features: Look for features like ramps, winches, and tie-down points.
- Budget: Balance your needs with your budget constraints.
FAQ 12: Where can I find reputable step deck trailer manufacturers and suppliers?
Reputable manufacturers and suppliers can be found through online directories, industry trade shows, and referrals from other transportation professionals. Look for companies with a strong reputation for quality, reliability, and customer service. Researching reviews and obtaining multiple quotes is always advisable.
Conclusion
Understanding the dimensions and capabilities of a step deck trailer is crucial for anyone involved in the transportation of over-dimensional freight. By adhering to safety guidelines, obtaining necessary permits, and choosing the right equipment, you can ensure the safe and efficient delivery of your cargo. The step deck’s unique design provides a valuable solution for hauling taller items, expanding the possibilities for moving goods across the country.