Trail King
Steel Aluminum Step Deck Trailer with Gooseneck
Find Your Specialized Solution
- Deck length
- 10 ft
- Deck height
- 34 in
Overview
Reinforced Steel GooseneckWeb stiffener bars and 1/4"-thick halfmoon gussets on one side of the web, plus overlapping “wrap-around” flanges where the gooseneck meets the main beam, reinforce the transition area of the gooseneck for uncompromised strength in this critical area. Also included: 4-bolt, easy-access front panel, stake pockets, and flag holders. Knee Braces and Steel CrossmembersKnee braces are bolted on, not welded, reducing stress on the main beam and crossmembers. Crossmembers are on 12" centers in the main deck and 18" centers in the upper deck. Air-Operated Control ValvesHigh quality air-operated valves are contained in a conveniently located, protective sealed box, and control the slider axle brakes/locks and suspension raise/lower functions. Actual functions will vary based on trailer options. Landing GearThe landing gear features a long-lasting, rust-resistant Armor-coated finish. Paint options available. Maximize payloads with Trail King’s Aluminum-Steel Combo Step Deck trailer. Engineered with a reinforced steel frame for durability and an aluminum deck for corrosion-resistant weight savings. Get greater payload capacity and long-term performance to accommodate your toughest payload, regardless of size or shape. Call our toll-free number 800-843-3324 The literature and image assets in this tab are digital assets, best for viewing online. To request print literature or media, please contact your District Sales Manager. Trail King Steel-Aluminum Step Deck Protect Your Investment with Our Complete Line of Services Trail King Paint Options We don’t have any current videos of this product on our YouTube channel (YET), but go subscribe so you don’t miss any new uploads! Published Date: June 17, 2026 Many fleets choose aluminum or combo aluminum-steel step deck trailers because the lighter trailer weight can help increase payload capacity and improve fuel efficiency over time. Yes. Step deck trailers are designed to transport taller and oversized freight that may exceed standard flatbed height limitations while remaining compliant with road regulations. Important considerations include payload capacity, trailer weight, deck height, axle configuration, frame construction, suspension type, durability, and the types of freight being hauled. A step deck trailer features two deck levels, allowing taller freight to be hauled while staying within legal height limits. Flatbed trailers have a single deck height and are better suited for shorter cargo. Gooseneck step deck trailers help improve weight distribution, stability, and maneuverability for heavy-haul applications. They are commonly used for transporting heavy equipment and oversized machinery. Weight capacity varies based on trailer configuration, axle setup, and model specifications. Many commercial step deck trailers are designed to haul heavy-duty loads for construction, agriculture, and industrial applications.
Specifications
Dimensions
- Aluminum-Steel Combo Step Deck Performance Specs
- TK80ACS-34
- Loaded Deck Height
- 34”
- Loaded Ground Clearance
- 9”
- Overall Width
- 102”
- Overall Length
- 47’ 10”
- Fifth Wheel Height
- 48”-50”
- Upper Deck Length
- 10’
- Full-Length Hook Track
- X
Capacity
- Base Weight
- 9,575 lbs. lbs
- Capacity
- 80k Distributed
- Aluminum Decking w/ (3) Flush Apitong Nailers
- X
Gooseneck
- Kingpin Setting
- 14”
General
- Concentrated Load Rating
- 60k in 10’
- Cross Member Spacing (Main/Upper)
- 12’/18”
- Anti-Lock Braking System
- 2S1M
- w/ Gauge in Enclosure
- X
- 2-Speed Landing Gear
- X
- Flag Holders
- 3/Side
- Document Holder
- 4 ½“ Round
- Red and White Conspicuity Markings
- X
- Standard TK Decals
- X
- 3/8” x 3” Aluminum Rub Rail w/ Double Chain Spools
- X
- Stake Pockets (24” O.C.) – Sides & Front
- X
- Dock Bumpers
- X
- Landing Gear
- features a long-lasting, rust-resistant Armor-coated finish. Paint options available.
Running Gear
- Suspension
- Holland CB23U
- Suspension Configuration
- Tandem
- Suspension Spacing
- 50”
- Rear Axle Location
- Wheels Back
- Drum Brakes
- 12 ¼ x 7 ½
- Brake Rating
- 20k
- Wheels
- 6.75 x 17.5 Steel
- Tires
- 235/75R17.5
- Armor Coated Landing Gear & Suspensions
- X
Electrical
- Sealed Electrical System
- X
- LED Lights
- X
- DOT Required Lights w/ Mid-Turn & 3rd Tail Light
- X
Frame
- Anti-Corrosion Barrier Between Aluminum and Steel
- X
- Zinc Coated Steel Components
- X
About step deck trailers
A step deck (or drop deck) has a short upper deck over the fifth wheel and a longer lower deck stepped down behind it. The lower deck sits around 36 to 40 inches high — roughly two feet lower than a flatbed — so it carries freight up to about 10 feet tall without an over-height permit. Common lengths are 48 and 53 feet, with ramps optional for wheeled equipment.
Not sure this is the right type for your load? Tell us what you are hauling and we will recommend a capacity and deck.
