We researched and compared the top side tool boxes for pickup trucks based on manufacturer specifications, industry standards, and aggregated owner feedback. Our evaluation focuses on durability, security, ease of installation, and real-world usability. Whether you need a rugged aluminum box for heavy tools or a low-profile option for daily use, this guide helps you choose the right one.

Photo Product Score Buy
🚗
UWS SBX-104 Side Tool Box
Best Overall
Aluminum construction, 40 lbs capacity, 60-inch length, gas struts
9.2 🛒 Check Price
Dee Zee DZ8750 Heavy Duty Side Tool Box Dee Zee DZ8750 Heavy Duty Side Tool Box
Runner Up
Steel construction, 50 lbs capacity, 48-inch length, rotary latch
8.9 🛒 Check Price
🚗
Weather Guard 127-5-001 Saddle Box
Best Security
Aluminum construction, 45 lbs capacity, 60-inch length, slam latch
8.6 🛒 Check Price
Buyers Products B190SS Side Tool Box Buyers Products B190SS Side Tool Box
Best Value
Stainless steel construction, 35 lbs capacity, 48-inch length, T-handle lock
8.3 🛒 Check Price
Kobalt Low-Profile Side Tool Box Kobalt Low-Profile Side Tool Box
Best Low Profile
Aluminum construction, 30 lbs capacity, 60-inch length, push-button lock
8.1 🛒 Check Price
Rugged Ridge 18005.10 Side Tool Box Rugged Ridge 18005.10 Side Tool Box
Best for Off-Road
Steel construction, 40 lbs capacity, 48-inch length, locking latch
7.8 🛒 Check Price
Plano 1875-00 Sportsman Trunk Plano 1875-00 Sportsman Trunk
Light Duty Pick
Polyethylene construction, 25 lbs capacity, 48-inch length, padlock tabs
7.3 🛒 Check Price

1. UWS SBX-104 Side Tool Box: Best Overall

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The UWS SBX-104 is a top performer in our evaluation, backed by owner feedback praising its robust diamond plate aluminum construction and secure locking mechanism. The gas struts make opening effortless, and the weather seal keeps contents dry. In our comparison of spec sheets, this box offers one of the best weight-to-strength ratios in its class.

However, its weight (around 60 lbs) may be a concern for those who frequently remove the box. It also sits relatively high on the bed rail, which can slightly limit rear visibility. Skip this if you need a lightweight, low-profile option or have a compact truck where bed space is at a premium.

  • Heavy-duty diamond plate aluminum resists rust and dents
  • Gas spring-assisted lid with lockable paddle handle
  • Includes weather seal and E-coat interior for corrosion resistance

Pros: Excellent build quality and finish; Easy to install with included mounting hardware
Cons: Heavier than some comparable models

2. Dee Zee DZ8750 Heavy Duty Side Tool Box: Runner Up

Dee Zee DZ8750 Heavy Duty Side Tool Box

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The Dee Zee DZ8750 stands out for its rugged steel construction and reliable rotary latch, which owners report staying tight even after years of use. The powder coat finish resists scratches and rust. In our research, this model consistently ranks high for security and durability.

On the downside, the steel box is heavy (about 65 lbs) and can be cumbersome to install alone. The black finish may show scratches more than textured aluminum. Skip this if you prefer a lighter aluminum box or need a longer length for full bed access.

  • Heavy-duty steel with black powder coat finish
  • Rotary latch lock system with keyed cylinder
  • Full-length lid with continuous hinge

Pros: Very sturdy and dent-resistant; Smooth rotary latch operation
Cons: Heavier than aluminum models

3. Weather Guard 127-5-001 Saddle Box: Best Security

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Weather Guard is known for commercial-grade security, and the 127-5-001 lives up to that reputation. The slam latch engages automatically, and the recessed lock resists tampering. Owner feedback highlights the peace of mind from its solid construction and weather seal.

However, this box is among the more expensive options, and the latch mechanism can be stiff when new. It also lacks interior lighting, which some users find inconvenient. Skip this if you are on a tight budget or prefer a lower-profile box that doesn’t extend as high above the bed rail.

  • Diamond plate aluminum with stainless steel slam latch
  • Recessed key lock and continuous hinge
  • Foam gasket seal for weather resistance

Pros: Slam latch locks automatically when closed; High security with robust lock mechanism
Cons: Higher price point

4. Buyers Products B190SS Side Tool Box: Best Value

Buyers Products B190SS Side Tool Box

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The Buyers Products B190SS offers excellent corrosion resistance with its 304 stainless steel construction, making it ideal for coastal areas or salt-prone environments. Owner reviews note the brushed finish hides scratches well. In our value assessment, this box provides solid security and durability at a lower cost than many competitors.

But its capacity is limited, and the T-handle lock is less secure than rotary or slam latches. The box is also shorter (48 inches), which may not fit full-width bed access. Skip this if you need to store large, heavy tools or require maximum security.

  • 304 stainless steel with brushed finish
  • T-handle lock with weather-resistant cover
  • Pre-drilled mounting holes and hardware included

Pros: Corrosion-resistant stainless steel; Good value for the price
Cons: Smaller capacity than some aluminum boxes

5. Kobalt Low-Profile Side Tool Box: Best Low Profile

Kobalt Low-Profile Side Tool Box

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The Kobalt Low-Profile box is designed for those who want tool storage without sacrificing visibility or bed space. Its slim profile sits flush with the bed rail, and owner feedback appreciates the clean look. The aluminum construction keeps weight down, and the push-button lock is convenient.

However, the low profile limits the depth of tools you can store, and the lock mechanism feels less robust than paddle or slam latches. Some users report the latch can be finicky in cold weather. Skip this if you need to store tall tools or prefer a more secure locking system.

  • Low-profile design sits below bed rail
  • Aluminum with textured black finish
  • Push-button lock with key override

Pros: Minimal impact on rear visibility; Lightweight and easy to install
Cons: Less storage capacity than full-height boxes

6. Rugged Ridge 18005.10 Side Tool Box: Best for Off-Road

Rugged Ridge 18005.10 Side Tool Box

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The Rugged Ridge side box is built for off-road use, with a tough steel shell that can withstand bumps and vibrations. Owner feedback from truck enthusiasts notes it holds up well on trails. The locking latch provides basic security, and the price is budget-friendly.

However, the steel is heavy and the powder coat can chip over time, leading to rust if not maintained. The latch mechanism is not as smooth as pricier options. Skip this if you need a weather-tight seal or prioritize corrosion resistance for salt-prone environments.

  • Black powder-coated steel
  • Locking latch with key
  • Includes mounting brackets and hardware

Pros: Rugged construction suitable for rough terrain; Affordable price point
Cons: Heavy and prone to rust if coating chips

7. Plano 1875-00 Sportsman Trunk: Light Duty Pick

Plano 1875-00 Sportsman Trunk

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The Plano Sportsman Trunk is a plastic alternative for light-duty storage. It won’t rust, and its low weight makes it easy to handle. Owner reviews mention it works well for camping gear or light tools. The padlock tabs allow you to add your own lock.

But this box is not suitable for heavy tools or high-security needs. The plastic can crack under extreme cold or impact, and the lid seal is not waterproof. Skip this if you need a long-term, heavy-duty solution or store valuable items.

  • Heavy-duty plastic, won't rust or dent
  • Padlock ready hasps for added security
  • Lightweight and easy to move

Pros: Very lightweight and corrosion-proof; Low cost
Cons: Not as secure as metal boxes; Limited capacity and durability

Frequently Asked Questions

What size side tool box should I get for my pickup?

Measure your truck bed width and height clearance. Full-size trucks typically accommodate 60-inch boxes, while compact trucks may need 48-inch. Also consider how much bed access you need; a saddle box bridges both sides, while a crossover box goes behind the cab.

Are aluminum or steel side tool boxes better?

Aluminum is lighter, rust-resistant, and easier to install, but can dent more easily. Steel is heavier and more dent-resistant but prone to rust if the coating is damaged. For most users, aluminum offers the best balance of weight and durability.

How do I install a side tool box?

Most side tool boxes mount using J-bolts or brackets that clamp to the bed rail. Installation typically takes 30-60 minutes with basic tools. Always use the included hardware and tighten evenly to avoid shifting.

Can I use a side tool box with a tonneau cover?

It depends on the cover type. Low-profile boxes may work with roll-up covers, but many side boxes interfere with folding or retractable covers. Check the cover manufacturer’s compatibility list before purchasing.

How do I maintain my side tool box?

Periodically clean the box with mild soap and water. For steel boxes, touch up any scratches with matching paint to prevent rust. Lubricate lock mechanisms with graphite powder. Check mounting bolts for tightness every few months.

Our Verdict

After comparing specifications, owner feedback, and industry standards, our top pick is the UWS SBX-104 for its balanced combination of durability, security, and ease of use. For those seeking a more affordable option with solid performance, the Dee Zee DZ8750 is an excellent runner-up, especially if you prefer steel construction.