Understanding Semi-Trailer Dimensions for Efficient Equipment Transport

When it comes to equipment transportation, semi-trailer dimensions are key to determining what can be transported safely and efficiently. Different types of trailers have varying sizes and weight limits, which are critical when selecting the right one for your cargo. Whether you're hauling heavy machinery, agricultural equipment, or oversized freight, knowing the trailer’s size and weight limits helps ensure a safe and cost-effective transport process.

Here’s a breakdown of common semi-trailer types and their dimensions, so you can choose the right trailer for your hauling needs.

Flatbed Trailers: Ideal for Versatile Loads

Flatbed trailers are among the most widely used for hauling a variety of equipment. Their open structure makes them perfect for LTL (less-than-truckload) shipments and various machinery types. If you need to move multiple pieces of freight or oversized items, flatbed trailers can accommodate it all. Below are the typical flatbed trailer dimensions:

• Max Length: 53 ft

• Max Width: 8.5 ft

• Max Height: 8.5 ft

• Max Weight: 48,000 lbs

For more details about flatbed semi-trailer options, explore our product range.

Step Deck Trailers: For Taller Cargo

Step deck trailers are ideal when transporting taller cargo that cannot fit on a standard flatbed. They feature a two-deck design, with an upper and lower level. The lower deck provides more height clearance for taller equipment, while the upper deck can carry smaller machinery or multiple pieces of freight. Here are the step deck trailer dimensions:

• Upper Deck Length: 11 ft

• Lower Deck Length: 37 ft to 41 ft

• Overall Length: 48 ft to 53 ft

• Max Upper Deck Height: 8’6 ft

• Max Lower Deck Height: 10 ft

• Max Width: 8’6 ft

• Max Weight: 48,000 lbs

Removable Gooseneck (RGN) Trailers: Perfect for Heavy Equipment

If you need to transport large equipment that can be driven onto the trailer, Removable Gooseneck (RGN) trailers are an excellent option. These trailers can lower their gooseneck to the ground, forming a ramp for easy loading of heavy, self-powered cargo. Often used for construction and farm machinery, RGN trailers are a versatile solution. Here are the RGN trailer dimensions:

• Max Length: 29 ft

• Max Width: 8.5 ft

• Max Height: 11.6 ft

• Max Weight: 42,000 lbs

If you’re looking for specific towing parts for your semi-trailer, check out our Towing Parts Collection.

Lowboy Trailers: Ideal for Overheight Loads

For equipment that needs to clear low bridges or other height restrictions, lowboy trailers are designed to transport tall equipment with minimal clearance issues. These trailers are incredibly low to the ground, ensuring that even the tallest items remain within legal height limits. Here are the typical lowboy trailer dimensions:

• Max Length: 24 ft to 29.6 ft

• Max Width: 8.5 ft

• Max Height: 11.5 ft to 12 ft

• Max Weight: 40,000 lbs to 80,000 lbs (depending on axles)

For more information on lowboy trailers, check out our product options.