When you need maximum secure storage capacity beneath your truck without consuming valuable bed space, the WEATHER GUARD Under Bed Tool Box Jumbo (Model 650-0-02) delivers professional-grade performance with heavy-duty aluminum diamond plate construction and distinctive clear-coated finish. This substantial automotive accessory mounts beneath your truck, providing an impressive 16 cubic feet of secure storage capacity for larger, heavier items and tools while keeping your truck bed completely clear for primary cargo and equipment. Designed specifically for heavy-duty trucks, semi trucks, flatbed trucks, platform trucks, and dump truck bodies, this jumbo underbed truck tool box features 11-gauge aluminum body construction that resists corrosion while providing exceptional strength. Measuring 48" long, 24" wide, and 24" high, this jumbo underbed storage solution provides maximum capacity while fitting within typical frame rail spacing. The large door opening (19.5" high by 43.25" wide) provides outstanding access to contents, while the heavy-duty three-point latching system, rain gutter, full weather seal, and stainless steel D-handles ensure your valuable tools and equipment remain secure and protected from theft and weather. At 83 pounds, the aluminum construction keeps weight remarkably manageable considering the 16 cubic foot capacity—significantly lighter than comparable steel units. The clear ARMOR TUF powder coat finish preserves and showcases the distinctive aluminum diamond plate appearance. For contractors, fleet operators, owner-operators, or anyone needing to maximize underbed storage capacity without sacrificing truck bed utility, this represents an intelligent durable truck bed cover alternative that creates substantial storage space where none existed before.
Heavy-Duty 11-Gauge Aluminum Construction
The Under Bed Tool Box Jumbo is constructed from 11-gauge aluminum body—heavier gauge material than standard underbed boxes, providing exceptional strength for the larger 16 cubic foot capacity. At 83 pounds, the aluminum construction delivers impressive weight efficiency for such a substantial storage unit, keeping weight manageable during installation while providing the robust durability necessary for equipment mounted beneath trucks exposed to road debris, weather, chemicals, and demanding conditions.
Aluminum offers multiple advantages for large underbed storage applications: natural corrosion resistance ensures long-term durability even when exposed to road salt, moisture, and harsh environments; lightweight construction minimizes impact on vehicle weight and fuel economy—83 lbs for 16 cubic feet represents exceptional capacity-to-weight ratio; the material withstands years of exposure to road conditions without rusting or deteriorating; and aluminum maintains structural integrity through constant vibration and impacts. The aluminum door and hinge specifically reduce weight while protecting against corrosion in these high-wear, high-exposure areas.
The clear ARMOR TUF powder coat finish over aluminum diamond plate preserves and enhances the material's distinctive appearance while providing additional protection. This commercial-grade clear coating resists scratches, chips, and UV damage while allowing the aluminum diamond plate pattern to remain fully visible—creating the classic professional appearance that defines quality commercial vehicles. The clear finish maintains the bright aluminum appearance, showcases the diamond plate texture, protects against oxidation and weathering, and creates the traditional look preferred by many professional operators.
The heavy-duty welded construction with C-channel reinforced lid ensures structural integrity even with the larger dimensions and capacity—critical for a jumbo unit that will hold heavier total loads and experience greater stresses.
Comprehensive Weather Protection and Security
The Under Bed Tool Box Jumbo is engineered with multiple systems working together to protect contents from weather and theft—particularly important given the substantial value of tools and equipment this large capacity can hold. The rain gutter and full weather seal keep moisture out of the tool box and away from your equipment—critical for underbed storage exposed to road spray, rain, snow, and washing. The memory-resistant D-shaped ribbed weather strip maintains sealing effectiveness through thousands of opening and closing cycles and extreme temperature variations.
The stainless steel D-handles are easy to grip even with gloves on and create a tight door seal when latched. The rotary style, two-position latch helps protect against theft and weather by providing secure closure. The heavy-duty three-point latching system on the underbody truck tool box means valuable supplies will be safe and protected—three separate locking points distribute force across the larger door and make prying entry extremely difficult even with the increased door size.
Security features can be keyed alike on request for fleet operations managing multiple vehicles with underbed storage—allowing one key to access all units across your fleet for simplified key management.
Maximum Access and Installation Features
The door opening measures 19.5" high by 43.25" wide—substantially larger than compact underbed boxes—providing outstanding access to the 16 cubic foot interior. This large opening allows you to load and retrieve larger items, bulky equipment, multiple tool cases simultaneously, and organize substantial inventories efficiently. The tool-less quick release doors adjust from 90 degrees to 180 degrees with QuickClips and no tools required—allowing you to position doors for optimal access in different situations or vehicle configurations without carrying tools, particularly valuable when loading or unloading larger items.
The jumbo size underbed design (48" long, 24" wide, 24" high) fits beneath heavy-duty trucks, semi trucks, flatbed bodies, platform bodies, and dump truck bodies with adequate frame rail spacing and ground clearance. The 24" height and width maximize storage volume while fitting within clearance constraints of many trucks. The 48" length provides substantial storage capacity without excessive length that could interfere with other undercarriage components.
Installation takes approximately 1 hour and involves mounting the unit securely to the truck frame or body using appropriate hardware. Note that mounting hardware is not included—this allows you to select fasteners appropriate for your specific truck frame configuration and mounting location. Professional installation is recommended to ensure proper positioning, secure mounting to handle the heavier loads this jumbo capacity can contain, and clearance verification with the larger dimensions.
Key Features
- 16 Cubic Feet Jumbo Capacity: Maximum underbed storage—42% more capacity than standard 11.2 cu ft models
- 11-Gauge Aluminum Body: Heavy-duty construction at only 83 lbs—exceptional strength-to-weight ratio for jumbo capacity
- Large 19.5" x 43" Door Opening: Outstanding access to substantial interior—easily load and retrieve larger items
- Classic Diamond Plate with Clear Coat: Distinctive professional appearance—corrosion-resistant construction showcases traditional aluminum diamond plate
Professional Applications and Maximum Capacity
The Under Bed Tool Box Jumbo is specifically designed for applications requiring maximum underbed storage capacity. This substantial storage solution is ideal for flatbed trucks carrying extensive tool and equipment inventories, dump trucks with significant chain, binder, and safety gear requirements, platform trucks hauling diverse cargo needing comprehensive tool collections, semi trucks requiring substantial secure storage without trailer space consumption, contractor trucks carrying extensive equipment for multiple trades, utility trucks needing maximum supplemental storage beyond service bodies, or any operation where the largest possible underbed storage capacity creates significant operational advantages.
The 16 cubic foot capacity accommodates extensive tool collections, multiple power tool cases, large quantities of chains and binders, substantial tarp collections, complete recovery equipment sets, comprehensive safety gear inventories, significant spare parts collections, multiple fluid containers, or any substantial inventory you need to transport securely. The jumbo capacity means you can consolidate storage that might otherwise require multiple boxes or consume valuable truck bed space.
The underbed location keeps these substantial inventories secure, organized, and out of the way while preserving your entire truck bed for revenue-generating cargo and equipment. The 11-gauge aluminum construction and comprehensive weather sealing make this suitable for valuable equipment that must withstand harsh conditions. The secure three-point latching protects the substantial value of tools and equipment this large capacity enables you to carry.
The clear-coated aluminum diamond plate finish is particularly popular among owner-operators and fleet managers who prefer the traditional professional appearance of visible diamond plate—a look that communicates quality, durability, and professional standards in commercial trucking, especially important on equipment as substantial as this jumbo unit.
Quality and Warranty
The Limited Lifetime Warranty demonstrates WEATHER GUARD's confidence in construction quality for demanding large-capacity underbed applications. USA manufacturing ensures quality control standards, welding procedures, material specifications, and construction methods meet exacting requirements for substantial storage solutions that must withstand constant vibration, road debris impacts, weather exposure, and years of professional use carrying heavy loads in harsh environments.
Product Specifications
Model Number: 650-0-02
Style: Jumbo Under Bed Box
Material: 11-Gauge Aluminum Body with Diamond Plate
Finish: Clear ARMOR TUF Powder Coat
Storage Capacity: 16 cubic feet
Construction: Heavy-Duty Welded with C-Channel Reinforced Lid
Mounting Location: Under Bed (frame-mounted)
Security System: Heavy-Duty Three-Point Latching
Weather Protection: Rain Gutter, Full Weather Seal, Memory-Resistant D-Shaped Ribbed Strip
Handles: Stainless Steel D-Handles
Door Adjustment: 90° to 180° with Tool-Less QuickClips
Installation Time: 1 hour
Mounting Hardware: Not Included (select appropriate for your truck)
Key-Alike Option: Available on Request
Warranty: Limited Lifetime
Country of Origin: USA
Dimensions:
- Length: 48.13"
- Width: 24"
- Height: 24"
- Weight: 83 lbs
Door Opening:
- Height: 19.5"
- Width: 43.25"
Key Features:
- 16 cu ft jumbo storage capacity
- 11-gauge aluminum body construction
- Clear ARMOR TUF powder coat finish
- Heavy-duty three-point latching
- Rain gutter and full weather seal
- Stainless steel D-handles
- Large door opening (19.5" x 43.25")
- Tool-less door adjustment (90° to 180°)
- Memory-resistant weather strip
- C-channel reinforced lid
- USA manufacturing
- Jumbo underbed dimensions
- Corrosion-resistant aluminum diamond plate
Compatible Truck Types:
- Heavy-duty trucks
- Semi trucks
- Flatbed trucks
- Platform trucks
- Dump trucks
- Contractor trucks
- Utility trucks
- Flare side bed trucks
Maximum Underbed Storage Capacity
Whether you're a flatbed operator requiring extensive tool and equipment storage without bed space consumption, a dump truck owner needing maximum capacity for chains, binders, and safety equipment, a contractor whose diverse operations demand comprehensive tool inventories, a fleet manager seeking maximum storage standardization with traditional professional appearance, an owner-operator protecting substantial tool investments while maximizing hauling capacity, or anyone needing the largest possible secure storage capacity without sacrificing the truck bed that defines your vehicle's revenue-generating capability, the WEATHER GUARD Under Bed Tool Box Jumbo 16 cu ft with aluminum diamond plate delivers the ultimate underbed solution. The combination of 16 cubic feet maximum underbed storage capacity (42% more than standard models), heavy-duty 11-gauge aluminum construction at only 83 lbs, large 19.5" x 43" door opening for easy access, three-point latching with comprehensive weather sealing, stainless steel D-handles, tool-less adjustable doors, jumbo dimensions maximizing capacity, classic clear-coated diamond plate appearance, corrosion-resistant materials, and USA manufacturing with Limited Lifetime Warranty makes this the intelligent choice for operations requiring maximum secure accessible storage beneath the truck. This isn't just a jumbo underbed box—it's the ultimate capacity solution that creates substantial storage space where none existed while maintaining traditional professional appearance, protecting your most valuable and extensive tool inventories while preserving every inch of truck bed space for the cargo and operations that drive your business success.
Terms to Know
- Under Bed Tool Box: Storage unit that mounts beneath the truck frame or body rather than in or on the truck bed—creates storage capacity without consuming bed space.
- 11-Gauge Aluminum Body: Heavier gauge aluminum (approximately 0.091" thick) providing exceptional strength for larger capacity applications—stronger than standard gauge underbed boxes.
- 16 Cubic Feet Capacity: Maximum storage volume (approximately 27,648 cubic inches)—substantial capacity for extensive tool and equipment inventories.
- Aluminum Diamond Plate: Aluminum sheet with raised diamond pattern providing structural rigidity, slip resistance, and distinctive professional appearance—lighter and more corrosion-resistant than steel.
- Clear ARMOR TUF Powder Coat: Transparent protective coating that preserves and showcases aluminum diamond plate appearance while providing scratch and UV resistance.
- Three-Point Latching System: Security mechanism with three separate locking points across the door—distributes force and resists prying entry even on larger doors.
- Rain Gutter: Channel along the top edge that diverts water away from the seal—prevents moisture intrusion even in heavy rain or washing.
- Weather Seal: Gasket or strip creating weatherproof barrier when door is closed—keeps moisture, dust, and debris out of storage interior.
- Memory-Resistant Weather Strip: Sealing material that returns to original shape after compression—maintains effectiveness through temperature extremes and thousands of cycles.
- Tool-Less QuickClips: Door adjustment mechanism allowing position changes without tools—switch between 90° and 180° opening for optimal access to large interior.
- C-Channel Reinforced Lid: Lid strengthened with C-shaped channel sections—provides rigidity and prevents warping under stress on larger jumbo dimensions.
- Rotary Two-Position Latch: Latch mechanism with two distinct positions providing security—rotates to engage locking system.
- Key-Alike Option: Multiple locks using the same key—simplifies fleet key management when multiple vehicles have underbed storage.
- Heavy-Duty Welded Construction: Permanent joining of components through welding rather than fasteners—provides maximum strength for larger capacity unit.
