Best Side Mount Tool Boxes for Trucks to Expand Bed Storage
Discover durable, weather-resistant side mount tool boxes designed to maximize truck bed space. This guide reviews five top-rated options from trusted brands, highlighting material, capacity, and access features to help you pick the right box for tools, camping gear, or equipment on the go.
Summary of Selected Products
| Product | Brand | Size (L x W x H) | Key Feature |
|---|---|---|---|
| 60 Inch Side Mount Truck Tool Box Aluminum Pickup Truck Bed Tool Box Trailer Storage with Lock Key 5 Bar Tread 60″ x 8″ x 14″ Black | PRUNkuar | 60″ x 8″ x 14″ | Heavy-duty aluminum with corrosion-resistant 5 bar tread |
| Vigorighter 48 Inch Side Mount Truck Box 2 Pack | Vigorighter | 48″ x 13″ x 12.8″ | Side mount design; high capacity; two-pack option |
| Vigorighter 36 Inch Side Mount Tool Box 2 Pack | Vigorighter | 36″ x 12″ x 12″ | Side mount; weatherproof; two-pack option |
| UWS EC30363 36-Inch Matte Black Heavy-Wall Aluminum Truck Side Tool Box | uws | 36″ x 9-? (approx.) x 12″ | RigidCore lid; extra-thick aluminum; low profile |
| BeoneYuu Side Mount Truck Tool Box 60″ x 13.2″ x 14.5″ | BeoneYuu | 60″ x 13.2″ x 14.5″ | Side access; welded 0.058″ aluminum; multiple sizes |
60 Inch Side Mount Aluminum Truck Tool Box

PRUNkuar offers a heavy-duty aluminum construction designed for long-lasting durability in harsh environments. The 5-bar tread pattern enhances corrosion resistance while providing a rugged look. Its side-mount design optimizes bed space, granting convenient access to tools and gear without intruding into the main cargo area. The box includes a lockable feature for security, suitable for work sites or on-the-go storage needs.
Vigorighter 48 Inch Side Mount Tool Box (2 Pack)

This two-pack from Vigorighter features a side mount design that keeps tools accessible from the truck’s edge, preserving bed space. Crafted from welded aluminum with a one-piece tub, these boxes are lightweight yet sturdy, weatherproof, and built for durability. The dimensions 48″ L x 13″ W x 12.8″ H accommodate a wide range of hand tools and accessories, with options that sit lower in the bed for a flush appearance.
Vigorighter 36 Inch Side Mount Tool Box (2 Pack)

Designed for space efficiency, this 36″ box from Vigorighter sits on the truck’s side rails, leaving bed space open for other gear. The one-piece aluminum tub is welded for strength and durability, with weatherproof sealing to protect contents. These boxes offer a practical balance of capacity and accessibility, suitable for daily trades or weekend adventures with secure locking features.
UWS EC30363 36-Inch Side Tool Box

UWS brings a high-strength option with a RigidCore lid that uses solid foam to prevent lid binding while maintaining a low-profile, streamlined look. The box is constructed from thicker aluminum for superior rigidity and durability, designed to mount securely along the truck bed rail. Its side-access design provides quick tool retrieval without intruding on the bed space, ideal for professional and recreational use alike.
BeoneYuu Side Mount Truck Box 60″ (Black)

BeoneYuu’s 60″ side-mount tool box provides direct truck-side access with a robust 0.058-inch aluminum tub. It emphasizes versatility by offering multiple length options (36″, 48″, 60″) to fit varied bed widths. The construction emphasizes durability and resistance to weather, maximizing storage without compromising bed space or vehicle balance. Lockable features enhance security for tools and equipment during transport.
BeoneYuu Side Mount Truck Box 60″ X 13.2″ X 14.5″ (Black)

This BeoneYuu model emphasizes side access and ergonomic dimensions tailored to extended tool storage. The heavy-gauge aluminum construction ensures long-term rugged use, with options to select different bed-length configurations. A strong emphasis on space efficiency makes it suitable for contractors who need reliable organization without sacrificing bed capacity.
Buying Guide: Key Purchase Considerations
- Material and Durability: Look for aluminum or heavy-duty steel with corrosion resistance, especially if you operate in wet or salty environments. Thick walls and a strong lid contribute to long-term performance.
- Mounting Style: Side mount boxes save bed space and provide quick access. Confirm compatibility with your truck’s bed rails and whether clamps, mounting hardware, or drilling is required.
- Capacity and Dimensions: Compare interior storage space with the tools or gear you plan to carry. Consider overall dimensions to ensure the box sits flush with your tailgate and doesn’t obstruct wheel wells or taillights.
- Security: Many options include locks or keyed latches. If you park in unsecured areas, prioritize boxes with secure locking mechanisms and robust latches.
- Weatherproofing: A weather-sealed lid and gasket help prevent water ingress. Foam-filled lids and rigid core designs reduce lid binding and maintain a tight seal.
- Installation and Maintenance: Some kits require no drilling, while others need brackets or clamps. Check warranty terms and ease of maintenance, such as cleaning and replacing seals.
- Value for Space: Evaluate whether the price aligns with the bed space you gain. In some cases, two smaller boxes may offer better organization than a single larger box.
- Brand Reliability: Choose brands with positive durability histories and customer support to ensure easy replacements parts, if needed.
When selecting a side-mount toolbox, balance access speed, capacity, and weather protection with your truck’s bed layout. The options above are designed to maximize storage while preserving bed space, making them suitable for professional crews and weekend enthusiasts alike.