After researching manufacturer specifications, safety standards, and aggregated owner feedback, we compared the best side boxes for pickup trucks. Our evaluation focused on durability, security, ease of installation, and real-world performance. Here are our top picks, each with honest strengths and limitations.
| Photo | Product | Score | Buy |
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Dee Zee DZ8500 Heavy Duty Side Box Best Overall Aluminum construction, diamond plate tread, 24.5 x 16.75 x 17.5 inches |
9.0 | 🛒 Check Price |
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UWS ECONO-101 Economy Side Box Best Value Steel construction, black powder coat, 23 x 15 x 16 inches |
8.4 | 🛒 Check Price |
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Weather Guard 125-5-001 Aluminum Side Box Best Security Aluminum construction, slam latch, 25 x 17 x 18 inches |
8.8 | 🛒 Check Price |
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Rugged Ridge 18002.08 Side Box Best for Jeeps and Compact Trucks Steel construction, textured black finish, 20 x 14 x 14 inches |
7.8 | 🛒 Check Price |
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Truck-Box TB-35 Aluminum Side Box Best Lightweight Aluminum construction, 35 lbs, 24 x 16 x 16 inches |
8.2 | 🛒 Check Price |
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Better Built 75137 Steel Side Box Best Heavy-Duty Steel Steel construction, black powder coat, 26 x 17 x 17 inches |
8.6 | 🛒 Check Price |
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Dee Zee DZ8501 Heavy Duty Side Box Best Extra-Large Aluminum diamond plate, 29 x 18 x 18 inches |
8.1 | 🛒 Check Price |
1. Dee Zee DZ8500 Heavy Duty Side Box: Best Overall
The Dee Zee DZ8500 is a classic heavy-duty side box built from thick aluminum diamond plate. In our evaluation, its corrosion resistance and structural rigidity stood out among competitors. Owner feedback consistently praises its ability to withstand harsh weather and heavy loads. The paddle-handle latch is smooth and the included weather seal keeps contents dry.
However, its weight (over 30 pounds) makes installation a two-person job. Some owners reported the mounting brackets could be more robust for extreme off-road use. If you need a lighter box or have a compact truck, consider a smaller option.
- Heavy-duty aluminum diamond plate resists dents and corrosion
- Paddle-handle latch with lockable security
- Includes mounting hardware and weather seal
Pros: Extremely durable build; Smooth latch operation
Cons: Heavy, may need two-person installation
2. UWS ECONO-101 Economy Side Box: Best Value
The UWS ECONO-101 delivers solid value for budget-conscious truck owners. We compared its steel build and powder coat finish against pricier aluminum boxes, and while it lacks the corrosion resistance of aluminum, it holds up well in dry climates. The push-button latch is convenient and the key lock provides basic security.
However, the interior is smaller than many competitors, and the steel can rust if the coating is chipped. This box is best for occasional use or for trucks kept in garages. If you need maximum durability or live in a salt-belt region, spend more on an aluminum model.
- Economical steel box with durable powder coat finish
- Push-button latch with key lock
- Pre-drilled mounting holes for easy installation
Pros: Affordable price point; Decent security for the cost
Cons: Steel prone to rust if scratched; Smaller interior space
3. Weather Guard 125-5-001 Aluminum Side Box: Best Security
The Weather Guard 125-5-001 is built like a vault. In our evaluation, its slam latch and lock design provide top-tier security, and the aluminum construction resists corrosion. Owner feedback highlights its ability to keep tools secure even in high-theft areas. The full-length weather seal is effective against rain and dust.
On the downside, this box is expensive and heavy. The interior is not as customizable as some competitors. If security is your top priority and you don’t mind the weight, this is a strong choice. However, if you need lighter weight or more organizational features, look elsewhere.
- Slam latch with heavy-duty lock for enhanced security
- Full-length weather seal keeps contents dry
- Ribbed lid design for added strength
Pros: Excellent lock and latch mechanism; Very weather-resistant
Cons: Higher price point; Heavy and bulky
4. Rugged Ridge 18002.08 Side Box: Best for Jeeps and Compact Trucks
The Rugged Ridge 18002.08 is designed for smaller trucks and Jeeps where full-size boxes won’t fit. Our research shows it is popular among off-road enthusiasts for its compact dimensions and tough look. The textured finish hides scratches well.
However, its small size means limited storage, and the lack of a full weather seal allows dust and moisture inside. Owners in wet climates reported rust on the steel. This box is best for light-duty storage on vehicles that stay mostly on pavement. Skip it if you need maximum capacity or weather protection.
- Compact size fits smaller trucks and SUVs
- Textured powder coat resists scratches
- Includes mounting hardware
Pros: Great fit for compact vehicles; Rugged appearance
Cons: Limited interior space; Not fully weather-sealed
5. Truck-Box TB-35 Aluminum Side Box: Best Lightweight
The Truck-Box TB-35 is one of the lightest aluminum side boxes we researched. At 35 pounds, it can be installed by one person. The recessed handle and lock are well-designed to avoid snagging. Owner feedback indicates it holds up well in moderate conditions.
However, the thinner aluminum is more prone to denting under heavy loads. The latch mechanism, while functional, does not feel as solid as pricier models. This box is ideal for light-duty use where weight is a concern. Avoid it if you need heavy-duty security or plan to store heavy tools.
- Lightweight aluminum saves weight
- Recessed handle and lock protect against damage
- Easy one-person installation
Pros: Easy to install alone; Good corrosion resistance
Cons: Thinner aluminum may dent easier; Latch feels less robust
6. Better Built 75137 Steel Side Box: Best Heavy-Duty Steel
The Better Built 75137 is a heavy-duty steel box that prioritizes durability. In our evaluation, its reinforced lid and gas struts are standout features. Owner feedback from contractors and fleet users is positive, noting it withstands job site abuse. The keyed-alike lock system is convenient for multiple boxes.
However, its weight makes installation challenging, and the powder coat can chip if struck hard, exposing steel to rust. This box is best for heavy use on full-size trucks. Skip it if you need a lighter box or have a compact truck.
- Heavy-gauge steel for maximum durability
- Reinforced lid with gas struts
- Keyed-alike lock for fleet use
Pros: Extremely tough and dent-resistant; Gas struts hold lid open
Cons: Very heavy (over 40 lbs); Paint can chip over time
7. Dee Zee DZ8501 Heavy Duty Side Box: Best Extra-Large
The Dee Zee DZ8501 offers the largest storage volume among the boxes we evaluated. Its diamond plate aluminum is robust, and the paddle latch is secure. Owner feedback highlights its ability to store long tools and bulky items.
However, its large size can cause fitment issues on some truck beds, especially if you also have a toolbox. The weight (over 35 pounds) makes installation a two-person job. This box is best for full-size trucks with ample bed space. Skip it if you have a short bed or need to mount other accessories.
- Extra-large capacity for bulky gear
- Diamond plate aluminum construction
- Paddle latch with lock
Pros: Spacious interior; Strong aluminum build
Cons: Very heavy (over 35 lbs); Can interfere with toolboxes on some trucks
Frequently Asked Questions
How do I choose between steel and aluminum side boxes?
Steel boxes are generally heavier and more dent-resistant but prone to rust if the finish is damaged. Aluminum boxes are lighter and corrosion-resistant but may dent more easily. Consider your climate and the weight of tools you plan to store.
Can I install a side box myself?
Many side boxes come with mounting hardware and can be installed with basic tools. However, heavy boxes (over 30 lbs) often require two people for safe installation. Always follow the manufacturer instructions and use the provided brackets.
Are side boxes weatherproof?
Most side boxes include weather seals to keep out rain and dust, but they are not fully waterproof. In heavy rain or pressure washing, some moisture may enter. For sensitive items, consider additional waterproof containers inside.
Will a side box fit my truck?
Side boxes are designed for full-size and some mid-size trucks. Measure your truck bed length and width, and check for interference with tailgate cables, bed liners, or other accessories. Many manufacturers provide fitment guides.
How do I maintain my side box?
For aluminum boxes, occasional cleaning with mild soap and water is sufficient. Steel boxes should be checked for rust and touched up with matching paint. Lubricate the latch and hinges periodically to ensure smooth operation.
Our Verdict
After researching and comparing the top side boxes, our top pick is the Dee Zee DZ8500 for its excellent balance of durability, security, and value. The runner up is the Weather Guard 125-5-001 for those who prioritize maximum security and weather resistance.
