Cargo Box:

A cargo box, also called a roof box or roof cargo carrier, is a large, aerodynamic container that is mounted on the roof of a vehicle. It's designed specifically for transporting gear and luggage, making it a popular choice for outdoor enthusiasts and campers.

1. Protection and Durability:

• Weatherproofing: Cargo boxes are typically made from durable materials like ABS plastic or fiberglass, which provide excellent protection against rain, snow, and UV rays. This makes them ideal for storing items that need to stay dry, such as sleeping bags, tents, and clothing.
• Dust and Debris Protection: Because they are sealed and mounted on the roof, cargo boxes protect your gear from dust, dirt, and other road debris, which is especially useful when traveling on unpaved or dusty roads.

2. Security:

• Built-in Locks: Most cargo boxes come with integrated locks, offering a high level of security against theft. Some high-end models have reinforced locking systems or are designed to deter tampering, which is crucial when leaving your vehicle unattended in public areas.

3. Capacity and Organization:

• Capacity: Cargo boxes come in various sizes, typically ranging from 10 to 22 cubic feet. They are ideal for bulky items like tents, camping chairs, and duffel bags. However, due to their shape, they may not accommodate very long items like kayaks or skis without purchasing specialized models.
• Organization: Some cargo boxes have internal straps or compartments to help keep your gear organized during transport. However, space can be tight, so careful packing is necessary to maximize the box's utility.

4. Installation and Use:

• Roof Racks Required: To mount a cargo box, your vehicle must have a roof rack system. If your vehicle doesn’t have one, you’ll need to purchase and install a compatible rack, which can add to the overall cost.
• Ease of Access: Accessing a roof-mounted cargo box can be challenging, particularly if your vehicle is tall. This may require a step stool or ladder, especially when the box is full. Additionally, it can be inconvenient to retrieve items from the cargo box during a trip.

5. Impact on Driving:

• Aerodynamics: Cargo boxes are designed to be aerodynamic, but they still add wind resistance, which can slightly reduce your vehicle’s fuel efficiency. However, compared to other roof-mounted solutions, cargo boxes are relatively efficient.
• Vehicle Height: A cargo box adds to the overall height of your vehicle, which is something to consider when driving under low-clearance structures like bridges or parking garages.

6. Cost Considerations:

• Price Range: Cargo boxes are generally more expensive, ranging from around $200 for basic models to over $1,000 for high-end, large-capacity options. The cost is justified by the security, weather protection, and added space they provide.

Storage Box:

A storage box, also known as a trunk organizer or gearbox, is a versatile container that can be used in various settings, including inside your vehicle or at your campsite. These boxes are usually made of plastic, metal, or heavy-duty fabric and are designed to keep items organized and protected.

1. Protection and Durability:

• Weather Resistance: While some storage boxes are weather-resistant, most are not fully waterproof. This means they might not provide complete protection against heavy rain or snow if left outside. However, when kept inside your vehicle, they do protect your gear from minor spills, dust, and dirt.
• Impact Resistance: Storage boxes are typically sturdy and can protect your gear from being crushed or damaged during transport. Some models are made from rugged materials that can withstand rough handling.

2. Security:

• Locking Mechanisms: Some storage boxes come with basic locking mechanisms or can be secured with a padlock, but they generally do not offer the same level of theft deterrence as cargo boxes. They are better suited for use in secure areas, like inside your vehicle or at a well-monitored campsite.

3. Capacity and Organization:

• Capacity: Storage boxes come in a wide range of sizes, from small organizers to large, heavy-duty boxes. They are ideal for storing a variety of camping gear, including tools, cooking equipment, and smaller items that might get lost in a larger space.
• Modularity and Stackability: Many storage boxes are designed to be stackable, allowing you to organize your gear efficiently within your vehicle or at your campsite. Some have removable dividers or compartments for better organization.

4. Installation and Use:

• No Installation Required: Unlike cargo boxes, storage boxes require no installation. You simply place them in your vehicle’s trunk, backseat, or bed, making them easy to use and remove as needed.
• Easy Access: Because storage boxes are kept inside the vehicle, they are much easier to access than roof-mounted cargo boxes. You can quickly retrieve items without having to unload everything or climb onto the roof.

5. Impact on Driving:

• No Aerodynamic Impact: Since storage boxes are kept inside your vehicle, they do not affect your vehicle’s aerodynamics or fuel efficiency. This makes them a good option if you’re concerned about the additional fuel cost associated with a roof-mounted cargo box.
• Space Utilization: Storage boxes take up space inside your vehicle, reducing the available room for passengers or other cargo. This can be a limitation, especially on longer trips where every inch of space counts.

6. Cost Considerations:

• Price Range: Storage boxes are generally less expensive than cargo boxes, with prices ranging from $20 for basic plastic boxes to $150 or more for heavy-duty models with added features like weather resistance and locking mechanisms. This makes them a more budget-friendly option for many campers.  Aluminum storage boxes provide more texture and fashion.

When to Choose Each:

• Cargo Box: Best if you need to maximize interior space, require strong weatherproofing, and want added security for your gear. Ideal for longer trips, large families, or those with a lot of equipment.
• Storage Box: Best if you want an easy-to-access, versatile, and cost-effective solution that can also be used for organizing gear at your campsite. Ideal for shorter trips, solo travelers, or when you’re already using a large portion of your vehicle’s interior for other purposes. 

Hybrid Approach

Some campers choose to use both a cargo box and storage boxes. The cargo box can be used for larger, less frequently accessed items, while storage boxes can organize smaller items within the vehicle for quick access. This hybrid approach allows for both maximized space and convenience.

Final Decision

Your decision should consider factors like the type of camping you do (car camping vs. backcountry), the amount of gear you typically carry, how often you need to access your gear during transit, and your budget.