Truck Toolboxes for Sale & Installation – Manassas VA | American Truck & Trailer Supply


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Truck Toolboxes – Sales & Installation in Manassas, VA

Secure Storage & On-the-Job Functionality Starts Here

Looking for the perfect toolbox to organize your gear, protect your tools, and upgrade your truck’s utility? At American Truck & Trailer Supply in Manassas, Virginia, we carry and install high-quality truck toolboxes built for contractors, fleet vehicles, weekend warriors, and everyday drivers.

We offer a wide selection of crossover, chest, side-mount, and underbody toolboxes—with professional installation and expert recommendations.


Types of Truck Toolboxes We Carry

We offer toolboxes in aluminum, steel, and composite finishes, with weather-sealed lids, lockable latches, and options to fit nearly any truck or trailer setup.


Crossover Toolboxes (Saddle Boxes)

Mount across the bed rails behind the cab.

  • Most popular truck toolbox style

  • Available in single-lid, dual-lid, and low-profile designs

  • Fits full-size and mid-size trucks

  • Includes gas struts, weather seals, and locking mechanisms

  • Easy bed access without sacrificing space


Chest Toolboxes

Sits directly on the truck bed floor, flush against the cab.

  • Great for tonneau cover compatibility

  • Maximizes bed storage while staying below rail height

  • Ideal for truck owners needing a sleek, secure box under a cover

  • Available in standard and low-profile depths


Side-Mount Toolboxes (Topside Boxes)

Mount along the inner bed rails on one or both sides.

  • Perfect for storing frequently accessed tools

  • Great for fleet vehicles and contractors

  • Can be used alone or paired with other boxes

  • Flip-up doors, gas shocks, and weather-tight seals


Underbody Toolboxes (Underbed Mount)

Mount underneath flatbeds, utility trailers, or service trucks.

  • Ideal for commercial, utility, and fleet vehicles

  • Maximizes storage without using bed or deck space

  • Built tough with reinforced doors and steel construction

  • Locking T-handles and weather-resistant seals

  • Available in multiple sizes and depths


Additional Toolbox Styles & Features

  • Gull-wing toolboxes

  • Trailer tongue boxes

  • Vertical truck toolboxes

  • Toolboxes with built-in fuel tanks (combo units)

  • Powder-coated or diamond-plate aluminum finishes

  • Keyed-alike options for fleets

We carry trusted brands like UWS, Weather Guard, Dee Zee, RKI, Buyers Products, Better Built, and more.


Professional Installation Available

Let our team handle the install. We’ll ensure your toolbox is:

  • Centered, leveled, and mounted securely

  • Integrated with existing truck accessories (bed rails, tonneau covers, etc.)

Need multiple boxes or a custom setup? We’ll make it happen.


We Outfit Toolboxes On:

  • Ford F-150 / Super Duty

  • Ram 1500 / 2500 / 3500

  • Chevy Silverado / GMC Sierra

  • Toyota Tundra / Tacoma

  • Nissan Titan

  • Flatbeds and service bodies

  • Utility and landscape trailers

  • Commercial fleets and work vans


Serving Manassas & Northern Virginia

We're conveniently located in Manassas, Virginia, and proudly serve:

  • Gainesville

  • Bristow

  • Centreville

  • Warrenton

  • Haymarket

  • Nokesville

  • Fairfax

  • Sterling

  • Northern Virginia


Why Choose American Truck & Trailer Supply?

Wide Selection of Toolboxes In-Stock
Expert Installation with Clean Fitment
Commercial & Fleet Solutions Available
Custom Mounting for Any Vehicle or Trailer
Trusted Local Accessory Shop Since [Year]

Whether you're protecting thousands in tools or just organizing your daily essentials, we have the right storage solution.


Get a Toolbox Quote or Schedule Installation Today

Need a toolbox that works as hard as you do? Call or visit American Truck & Trailer Supply.

Location: 11949 Livingston Road, Manassas, Virginia
Phone: 703 257 1710