Hillsboro 4000 Aluminum Skirted Pickup Flatbed | Multiple Bed Sizes

Available Flatbed Sizes & Vehicle Footprints

The 4000 Series Aluminum is manufactured in multiple dimensions to perfectly fit your truck's rear-wheel configuration and Cab-to-Axle (CA) measurements. Common footprints include:

Hillsboro Truck Bed Size & Fitment Guide

Below is the master sizing chart to match the 4000 Series Aluminum flatbed to your specific chassis specifications:

The Structural Backbone: Extreme Duty Hybrid Framing

While the deck is made of high-strength extruded aluminum—supported by 3″ Aluminum I-beam crossmembers—the foundation relies on massive 4” x 2” tube steel long sills. These steel sills can adjust to fit 34”, 38”, or 42” frames. This hybrid approach ensures you never compromise on the truck's overall structural towing integrity while still reaping the extreme fuel-saving benefits of an aluminum deck.

Comprehensive Standard Features

• 6" Fold-Down Sides: Choose between having your sides up or down to effortlessly accommodate your load. Features heavy-duty slam latches and a 6" extruded rubrail to prevent unnecessary road damage.
• Adjustable-Height Headache Rack: Modify your aluminum tube headache rack to better fit your specific truck cab. It is durable, practical, features square tube louvers, and comes with integrated LED lights to protect cab passengers.
• Cargo Securing: Push a load across the bed with no interference using the recessed aluminum castings, then secure it down with recessed stainless steel flip-up tie-downs. Also features an extruded 3" tie rail with stake pockets.
• Elite Towing Setup: Pull heavy trailers safely using the 30K Gooseneck Ball Plate with a flush-mount cover (2 5/16” 30k ball included). Safely tow heavy bumper-pull loads via the rear tailboard's 25K receiver hitch with a 2 ½” tube.
• Body & Aerodynamics: Tapered rear with a step provides better clearance for towing and easier access to your bed. 96x102" wide dual-wheel beds feature a tapered front for a more aerodynamic and attractive profile. Includes a premium aluminum fuel door.
• Advanced LED Lighting: Signal to your neighbors using six stop, turn & tail lights, four backup lights, LED clearance and side-marker lights, and dual tag lights.
• Electrical Integration: Eliminate unwanted wiring issues with an automotive-grade sealed wiring harness featuring plug-in connections.

Available Factory Options

Personalize your Hillsboro 4000 Series to meet your exact job site requirements:

• Towing & Fuel: Hillsboro B&W conversion kit.
• Storage & Accessories: Removable tailgate kit to easily pull your tailgate for more space, Aluminum toolboxes to have everything you need for a repair on-hand, and Hillsboro logo mud flaps.

⚠️ Professional In-House Installation

Modern trucks feature highly complex safety, camera, and powertrain systems that directly impact upfit requirements. We offer full in-house installation services Monday - Friday in our dedicated service bays.

Whether you require the relocation of factory backup cameras, integration of parking proximity sensors, or clean routing using the integrated fuel doors, our technicians ensure your vehicle's systems remain fully operational. Contact our sales staff for an exact quote based on your specific truck make and model year.

Visit Riverside Trailers in Jerome, ID Today

Equip your truck with a premium lightweight aluminum flatbed. We stock multiple sizes and configurations to get your truck back on the road and working hard. Stop by our lot at 322 W Yakima Ave in Jerome, ID, serving the Twin Falls, Burley, and Mountain Home communities. Call our flatbed and upfitting experts today at 208-324-0400 to verify inventory, confirm your truck's CTA measurements, and build the perfect Hillsboro 4000 Series Aluminum Truck Bed for your fleet!

*Installations are only offered in our facilities. Flatbeds and installation labor are subject to Idaho sales tax. Weights and specifications are approximate and subject to change depending on options.