When you need the ultimate in accessible tool storage along your entire truck bed without sacrificing any cargo space, the WEATHER GUARD Hi-Side Tool Box (Model 390-0-02) delivers an exceptional solution in a maximum 90" configuration with sleek gloss black finish. This premium automotive accessory mounts on your truck's bed rails, providing an impressive 11.1 cubic feet of storage accessible from either side while leaving your entire bed floor completely open for lumber, equipment, materials, and cargo. The maximum-length design is specifically engineered for the longest truck beds or operators who demand storage along virtually the entire bed length, offering unprecedented tool access and organization wrapped in contemporary styling that reflects professional quality. With rugged aluminum diamond plate construction, extra-wide 42" door openings, and the innovative features that make WEATHER GUARD the industry standard, this extended hi-side box in gloss black delivers the security, weather protection, and organizational capability that professional contractors, tradespeople, and serious truck owners require for the most demanding applications.
Maximum 90" Length: Ultimate Full-Bed Coverage
The 90.25" length of this hi-side box provides the maximum coverage available—running along virtually the entire length of long-bed trucks and providing unprecedented tool access from anywhere along the bed. This maximum-length configuration offers distinct advantages for specific applications: commercial operators with extensive tool collections, fleet vehicles requiring comprehensive organization, contractors who need tools accessible from multiple work positions, or anyone who demands the absolute maximum in truck bed storage without sacrificing cargo floor space.
At 13.25" wide and 16" high, the box provides an exceptional 11.1 cubic feet of storage capacity—significantly more than shorter configurations while maintaining the fundamental hi-side advantage: your truck bed floor remains completely open. This is transformative for operations that need both extensive tool storage and regular cargo transport. You can haul full-length lumber, ladders, pipe, steel, sheet goods, pallets, or any cargo requiring the full bed length and width, while maintaining secure storage for a comprehensive tool collection along the bed rails.
The exceptionally wide door openings—12.75" high by 42" wide on each side—are the largest available in the WEATHER GUARD hi-side lineup. The 42" width provides outstanding accessibility, making it easy to load and retrieve items stored anywhere along the 90" length. This extra-wide access is particularly valuable with maximum-length boxes where reaching items toward the middle of the box could otherwise be challenging. The generous opening accommodates wider toolboxes, larger power tools, and bulkier equipment with ease.
Premium Aluminum with Professional Gloss Black Finish
The aluminum diamond plate construction is essential for a maximum-length configuration where weight management becomes critical. At 74 pounds, this 90" box remains manageable despite its exceptional length—a steel box of comparable size would be prohibitively heavy and impact payload capacity significantly. Aluminum's natural corrosion resistance ensures decades of reliable service without rust concerns, even in the harshest weather conditions, road salt exposure, or chemical environments that characterize commercial truck operations.
The Gloss Black ARMOR TUF powder coat finish over the aluminum diamond plate elevates the appearance while providing additional protection against scratches, chemicals, and UV exposure. This contemporary black finish creates a sleek, professional look that coordinates beautifully with black or dark-colored trucks, matches black bed liners and other black accessories for a unified appearance across your entire truck bed setup, and maintains its professional look even with the inevitable wear that occurs in working truck environments. For operators who understand that professional appearance impacts customer perception and business credibility—especially with the prominent visibility of a 90" hi-side box—the gloss black finish delivers both protection and sophisticated styling that makes a strong professional statement.
The aluminum door and hinge system is engineered specifically for the demands of maximum-length, extra-wide doors. Maintaining durability while minimizing weight in this extended configuration requires careful engineering, and the aluminum construction delivers both strength and manageable operation. The heavy-duty welded construction and heavy-duty C-channel reinforced lids provide exceptional structural integrity across the full 90" length, ensuring the box maintains its shape, sealing properties, and security throughout years of demanding professional use.
Key Features
- Maximum 90" Length: Ultimate bed rail coverage provides 11.1 cu ft storage accessible along virtually entire truck length
- Extra-Wide 42" Doors: Largest available openings (12.75" H x 42" W) for exceptional accessibility to stored items
- Tool-Less Adjustable Doors: QuickClips allow doors to adjust from 90° to 180° without tools for flexible access anywhere along length
- Professional Gloss Black Finish: Contemporary ARMOR TUF powder coat over aluminum diamond plate for durability and modern styling
Innovative Access and Organization Features
The tool-less adjustable door system using QuickClips provides exceptional versatility that's particularly valuable in maximum-length configurations. With doors extending along the full 90", the ability to adjust each section from 90 degrees (perpendicular) to 180 degrees (flat against truck side) without tools becomes invaluable. Configure doors independently based on access needs, workspace constraints, or whether you're loading items that require maximum clearance. The tool-free adjustment takes just seconds, making it practical to reconfigure as needed throughout the workday.
The removable parts bin keeps small items, fasteners, fittings, and frequently accessed parts organized within the substantial 11.1 cubic foot storage space. With maximum-length storage, organization becomes increasingly important—the parts bin ensures small items don't get lost at the bottom or buried under larger tools, maintaining efficiency even with extensive tool collections.
The convenient attachment point integrated into the box design adds cargo securing capability, creating a comprehensive truck bed organization system that combines maximum storage with practical tie-down functionality. This is particularly valuable in maximum-length configurations where the box provides securing points along most of the bed length.
Security and Weather Protection
The drill-resistant lock core defeats common break-in attempts—crucial protection given the substantial value of tools stored in an 11.1 cubic foot box. The three-point latching system is essential for the maximum 90" length, securing lids at three locations to prevent prying attempts and maintain proper sealing across the extended length. Without multiple latch points, extended lids could be vulnerable at their centers—the three-point system eliminates this concern.
Weather protection is comprehensive across the full 90" length. The rain gutter channels water away from openings along the entire box, while memory-resistant D-shaped ribbed weather stripping maintains effective sealing despite the extended sealing surface. This keeps tools dry, prevents rust on steel tools, protects electronics and precision instruments, and ensures equipment remains in optimal condition regardless of weather conditions during transport or storage.
Installation and Quality
Installation takes approximately 0.7 hours (about 40 minutes). Despite the maximum 90" length, bed rail mounting follows the same proven process as shorter boxes, though having assistance is recommended due to the extended length. The design is compatible with style-side long-bed trucks.
The Limited Lifetime Warranty demonstrates WEATHER GUARD's confidence even in maximum-length configurations. USA manufacturing ensures the quality control standards that have made WEATHER GUARD the professional's choice for decades. Optional key-alike configuration is available on request for fleet applications or operators with multiple WEATHER GUARD products.
Product Specifications
- Box Style: Hi-Side Tool Box (Maximum Length)
- Material: Aluminum Diamond Plate
- Finish: Gloss Black ARMOR TUF Powder Coat
- Storage Capacity: 11.1 cubic feet
- Mounting Location: Bed Rail
- Opening Type: Double Lid
- Door Size: 12.75" H x 42" W (each side)
- Lock System: 3-Point Latch with Drill-Resistant Core
- Construction: Heavy-Duty Welded
- Lid Construction: Heavy-Duty C-Channel Reinforced
- Weather Strip: Memory-Resistant D-Shaped Ribbed
- Installation Time: 0.7 hours
- Warranty: Limited Lifetime
- Country of Origin: USA
Dimensions:
- Length: 90.25"
- Width: 13.25"
- Height: 16"
- Weight: 74 lbs
Key Features:
- Maximum 90" length
- Extra-wide 42" door openings
- 11.1 cu ft storage capacity
- Tool-less adjustable doors (90° to 180°)
- Removable parts bin
- Convenient attachment point
- Rain gutter and full weather seal
- Three-point latching system
- Drill-resistant lock core
- Gloss black powder coat finish
- USA manufacturing
Compatible With:
- Style-side long-bed trucks
- Bed rail mounting
- Full-size trucks with 8' beds
Maximum Storage with Maximum Style
Whether you're a contractor with extensive tool requirements needing maximum accessibility while valuing contemporary appearance, a commercial operator requiring comprehensive organization across the full bed length with professional styling, a fleet manager seeking ultimate storage that projects quality and attention to detail, or a professional who demands the absolute maximum in accessible storage without sacrificing cargo capacity or modern aesthetics, the WEATHER GUARD 90" Hi-Side Tool Box in Gloss Black delivers the ultimate solution. The combination of 90" maximum length, 11.1 cubic foot capacity, extra-wide 42" doors, innovative adjustable door system, extreme security, comprehensive weather protection, lightweight aluminum construction, and contemporary gloss black finish makes this maximum-length hi-side box the definitive choice for operators with the most demanding storage requirements who refuse to compromise on professional appearance. With USA manufacturing backed by a Limited Lifetime Warranty, this represents the ultimate in bed rail storage capability and contemporary styling.
Terms to Know
- Hi-Side Tool Box: A truck storage solution mounting on bed rails to provide storage above the bed floor rather than occupying floor space.
- Bed Rail Mounting: Installation method attaching the toolbox to the top of truck bed side rails without drilling into the bed floor.
- Diamond Plate: Textured aluminum panel featuring raised diamond-shaped patterns providing slip resistance and structural strength.
- Three-Point Latching: Security system where the lid secures at three locations—essential for extended-length boxes to maintain security and sealing.
- Drill-Resistant Lock Core: Lock mechanism designed with hardened materials to resist drilling attacks.
- QuickClips: WEATHER GUARD's tool-free adjustment system allowing doors to be repositioned between 90-degree and 180-degree opening angles.
- ARMOR TUF Powder Coat: Durable finishing process creating a tough, chip-resistant, corrosion-proof protective layer.
- Memory-Resistant Weather Stripping: Weather seal material maintaining its original shape and sealing properties through repeated use—critical for extended sealing surfaces.
- C-Channel Reinforcement: Structural reinforcement using C-shaped metal channels adding rigidity without excessive weight.
- Long-Bed Truck: Pickup truck with an extended bed length, typically 8 feet, required for maximum-length 90" toolbox installations.
