The flat deck trailer remains one of the most versatile and in-demand trailer types across North America. Whether you’re hauling lumber, machinery, or general freight, flatbeds offer unmatched adaptability for cargo of all shapes and sizes.
At Kingpin Trailers in Edmonton, most of our customers already know the basics. A flat-deck trailer differs from a step-deck trailer mainly in height and wheel clearance. But what many don’t realize is how much material matters to trailer durability. The right flatbed depends not just on what you haul, but also on how heavy your payload is. Let’s break down the three core build types every buyer should know: Steel, Aluminum, or combo.
What You’re Asking About Flat Deck Trailers
If you’re browsing flatbeds, certain features will help you determine which type is right for you. These questions are the best place to start before you make the decision.
- How much does a flatbed trailer weigh?
- What is a combo trailer?
- Which is better? Aluminum or Steel?
- How long will each type last?
- What are some custom options?
These are the questions we hear every day at Kingpin. Each material affects the weight, lifespan, and maintenance cycles, helping you make an informed decision.
All Steel Flatbeds
Steel trailers are built for pure strength and rugged use. They’re the heavy-duty workhorses of the flat deck world, which is ideal for hauling equipment or dense freight through demanding environments like routes through the northern oilfields.
Important Details
- Weight: heaviest of the three, which slightly reduces payload capacity, and meets the requirements of certain kinds of freight.
- Composition: The entire frame and subframe are steel.
- Longevity: When maintained properly, these trailers can last a long time
- Paint Steel Flatdecks: Painted surfaces tend to rust, so maintaining a clean trailer will help prevent premature rust.
- HDG flat decks: If you purchase a 100% HDG flat deck, you don’t have to worry about premature rust or repainting your trailer
Best use: Oil and gas industry, construction, or industrial freight where durability matters more than weight.
All‑Aluminum Flatbeds
Aluminum flatbeds are prized for their lightweight design, corrosion resistance, and striking appearance. They’re built for efficiency in terms of weight and longevity.
Important Details:
- Weight: The lightest of the three, maximizing payload and improving fuel efficiency.
- Composition: Full aluminum frame, deck, and crossmembers with wooden runners.
- Longevity: Aluminum does not rust, which increases the life of your aluminum flatbed.
- Maintenance: No painting required; simple inspections keep it in top condition.
Best use: Long‑distance freight, polished fleets, heavy payloads to meet the limited weight capacities of many states in America.
Steel–Aluminum Combo Flatbeds
The steel-aluminum combo flatbed blends both worlds. With a steel frame for strength and an aluminum deck and cross members for weight savings, these trailers are very popular among Canadian fleets seeking balance and versatility.
Important Details
- Weight: lighter than a full steel flatbed, but heavier than an aluminum flatbed.
- Composition: Steel frame, aluminum deck and crossmembers
- Longevity: Outlasts steel in corrosive climates, but the main frame rail lends itself to rusting if it is painted
- Hyundai Steel-Aluminum Flatbeds: They can be equipped with an HDG steel component to address rusting issues.
- Corrosion Protection: Painted steel portions still need coating, but the aluminum deck resists rust naturally.
- Manufacturing: These trailers often use welded steel frames with bolted aluminum decks for easier repair and component replacement.
Best use: General freight, mixed cargo where weight is not as much of an issue.
We often customize combo trailers with sliding winches and J-hooks, extra tool boxes and dunnage racks.
Similarities Across All Flat Deck Types
Regardless of material, all flat deck trailers share these fundamentals:
- Maintenance: Regular inspections for deck integrity, corrosion and secure hardware
- Size Standards: Typically 48-53’ lengths and 8.5′ widths.
- Customization: stake pockets, winches, toolboxes, and tie-downs are common upgrades
A Guide to Choose The Best Flat Deck Trailer for You
- What are you hauling?
- Heavy Equipment – Steel
- Mixed Freight – Combo
- Long-haul – Aluminum
- Where are you hauling?
- Corrosive climates – Aluminum or combo
- Off-road rough routes – Steel
Your Flat Deck, Your Build
Every operation is different, and the “best” trailer depends on your industry, climate, and goals. At Kingpin Trailers, we help buyers customize and maintain their flat-deck trailers with decking materials, winch-track placements, load-securement gear, and lighting layouts tailored to your needs.
Call Kingpin Trailers and let our team walk you through your options, so you get a trailer built for your work: strong, efficient, and made to last.