Moving large items with a car requires the right attachment. We researched and compared the top car attachments for moving based on manufacturer specifications, industry safety standards, and aggregated owner feedback. Our evaluation covers cargo carriers, hitch racks, roof boxes, and tow dollies to help you choose the best solution for your vehicle and moving needs. Each product is critically assessed for performance, durability, value, ease of use, and safety.
| Photo | Product | Score | Buy |
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Thule Motion XT L Roof Box Best Roof Box 16 cubic feet capacity, fits most factory crossbars |
9.2 | 🛒 Check Price |
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Curt 18115 Class 3 Trailer Hitch Receiver Best Hitch Receiver 2-inch receiver, 5,000 lb towing capacity |
9.0 | 🛒 Check Price |
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MaxxHaul 70215 Hitch Mount Cargo Carrier Best Value Hitch Carrier 500 lb capacity, 60×20 inch platform |
8.7 | 🛒 Check Price |
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Yakima SkyBox 16 Carbonite Roof Cargo Box Premium Roof Box 16 cubic feet, fits most factory crossbars |
8.8 | 🛒 Check Price |
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Tow Ready 118400 Tow Dolly Best Tow Dolly 3,450 lb capacity, fits most front-wheel-drive cars |
8.4 | 🛒 Check Price |
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Rightline Gear 10050 Car Top Carrier Best Soft Roof Carrier 15 cubic feet, fits most vehicles with rain gutters or roof racks |
7.8 | 🛒 Check Price |
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Smittybilt 29810 Universal Roof Rack Basket Best Roof Rack Basket 50x41x5 inch basket, 300 lb capacity |
7.3 | 🛒 Check Price |
1. Thule Motion XT L Roof Box: Best Roof Box
The Thule Motion XT L is a premium roof box that offers 16 cubic feet of additional storage for moving bulky but lightweight items like bedding, clothing, or camping gear. In our evaluation, its aerodynamic shape and robust mounting system stood out. Owner feedback consistently praises the watertight seal and ease of use, though some note the box is heavy to lift onto tall vehicles. Based on the spec sheet, it meets all relevant safety standards for roof loads.
However, this roof box is not ideal for heavy items like furniture or tools, as roof load limits are typically low (often 100-165 lbs). Also, it requires crossbars that may not come with all vehicles. Drivers with low garage clearance or those who rarely need extra space should skip this pick and consider a hitch-mounted alternative. The Thule Motion XT L is best for those who prioritize aerodynamics and premium quality for soft, lightweight cargo.
- Aerodynamic design reduces wind noise and drag
- Dual-side opening for easy loading from either side
- Central locking system with keys for security
Pros: Excellent build quality and weather sealing; Easy to install and remove with PowerClick system
Cons: High price point compared to similar boxes
2. Curt 18115 Class 3 Trailer Hitch Receiver: Best Hitch Receiver
The Curt 18115 is a Class 3 hitch receiver that provides a solid foundation for towing a small trailer or attaching a hitch cargo carrier. We researched its compatibility and found it fits a wide range of vehicles, though some models require minor drilling. Owner feedback highlights its durability and the peace of mind from the lifetime warranty. Based on the manufacturer’s specs, it exceeds safety standards for Class 3 hitches.
That said, this hitch receiver itself doesn’t carry cargo; you need additional accessories like a cargo carrier or trailer. It also adds weight to the vehicle and reduces rear clearance. Those who don’t plan to tow or use hitch-mounted accessories should skip this. The Curt 18115 is best for drivers who need a versatile hitch for multiple moving tasks, from towing a trailer to mounting a cargo rack.
- Fits many vehicles with custom drilling required
- Corrosion-resistant black powder coat finish
- Includes all necessary hardware and installation instructions
Pros: High towing capacity for moving trailers or cargo carriers; Rugged construction with a lifetime warranty
Cons: Installation can be time-consuming without help
3. MaxxHaul 70215 Hitch Mount Cargo Carrier: Best Value Hitch Carrier
The MaxxHaul 70215 is a popular hitch-mounted cargo carrier that offers a 500 lb capacity for moving items like coolers, totes, or furniture. We compared its specs with similar products and found it offers good value for the price. Owner reviews appreciate the folding feature and straightforward assembly. However, safety considerations include ensuring the load is properly secured and that the carrier does not block rear lights or the license plate.
One real limitation is that the carrier can sway if heavily loaded, especially on rougher roads. Also, it adds length to the vehicle, making parking trickier. Those without a hitch receiver or who need to carry heavy, dense items should skip this. The MaxxHaul 70215 is best for budget-conscious movers who have a hitch and need to transport bulky but lightweight cargo.
- Folding design for easy storage when not in use
- Includes anti-rattle bolt and hitch pin
- Expanded metal deck for ventilation and drainage
Pros: Affordable and easy to install; Large platform suitable for boxes and luggage
Cons: Can obstruct rear license plate (requires a light kit)
4. Yakima SkyBox 16 Carbonite Roof Cargo Box: Premium Roof Box
The Yakima SkyBox 16 Carbonite is another top-tier roof box that competes directly with the Thule Motion XT. We researched its features and found it offers a similar capacity with a slightly different mounting system. Owner feedback highlights the ease of opening and closing, even in cold weather. The hard shell is durable and UV-resistant, which is great for long-term use. Based on the spec sheet, it meets safety standards for roof-mounted cargo.
However, like all roof boxes, it adds significant height and wind resistance, reducing fuel economy. The price is high, and it requires crossbars. Those who only move occasionally or have a low garage should skip this. The Yakima SkyBox is best for frequent movers who want a premium, long-lasting roof box and don’t mind the cost and height.
- Dual-side opening with gas struts for smooth operation
- HD T-grip handles are easy to use with gloves
- UV-resistant and impact-resistant ABS shell
Pros: Very secure locking system; Sleek design reduces wind noise
Cons: Expensive and heavy (55 lbs)
5. Tow Ready 118400 Tow Dolly: Best Tow Dolly
The Tow Ready 118400 is a tow dolly designed for moving a front-wheel-drive car behind a larger vehicle. We evaluated its specs and found it can handle up to 3,450 lbs, suitable for many compact cars. Owner feedback notes that it tows smoothly once properly loaded, but the setup process is involved. Safety features include LED lights and safety chains. Based on the manufacturer’s claims, it meets DOT standards.
However, this tow dolly is bulky to store and requires a Class 3 or higher hitch on the towing vehicle. It is not for moving household goods directly; it’s for moving a car. Those who don’t need to transport a vehicle should skip this. The Tow Ready 118400 is best for people moving long distances who need to bring a second car without driving it.
- Adjustable wheel straps and tie-downs
- LED lighting kit for safety
- Torsion suspension for smooth towing
Pros: Allows towing a vehicle behind a moving truck or RV; Sturdy construction with safety chains
Cons: Heavy (over 500 lbs) and requires a strong hitch
6. Rightline Gear 10050 Car Top Carrier: Best Soft Roof Carrier
The Rightline Gear 10050 is a soft-sided roof carrier that offers a budget-friendly way to add cargo space for moving. We researched its design and found it uses straps to attach to either roof racks or rain gutters. Owner feedback is mixed: many appreciate the low cost and foldability, but some report water leakage in heavy rain and wear over time. Based on our evaluation, it is best for short, low-speed trips and light items.
However, this carrier is not recommended for long highway drives or valuable items due to the risk of straps loosening or the bag tearing. It also can damage paint if not installed correctly. Those who need a permanent solution or have high-value cargo should skip this. The Rightline Gear is best for occasional movers on a tight budget who are moving soft, lightweight items short distances.
- Waterproof PVC construction with welded seams
- Includes tie-down straps and anti-slip pads
- Folds flat for storage when not in use
Pros: Very affordable and easy to store; Can be used on cars without a roof rack (with included clips)
Cons: Not as secure as hard-shell boxes; can flap at highway speeds
7. Smittybilt 29810 Universal Roof Rack Basket: Best Roof Rack Basket
The Smittybilt 29810 is a universal roof rack basket that provides a flat platform for carrying larger items that don’t fit inside a car. We compared its specs with other baskets and found it has a 300 lb capacity, but the open design means items must be tied down securely. Owner feedback notes that installation can be tricky and the basket is heavy. It is also very loud on the highway, which is a common complaint.
This basket is not ideal for everyday use or for those who want a streamlined solution. It requires crossbars and additional tie-downs. The lack of weather protection means cargo is exposed to the elements. Those who need a quiet, secure, and weatherproof option should skip this. The Smittybilt basket is best for off-road enthusiasts or those moving items that are too large for a roof box, like furniture or outdoor gear.
- Steel construction with black powder coat
- Includes mounting hardware for most crossbars
- Open design allows carrying odd-shaped items
Pros: Can carry bulky items like furniture or lumber; Rugged and durable for off-road use
Cons: Noisy at highway speeds due to wind resistance
Frequently Asked Questions
What is the safest car attachment for moving heavy items?
For heavy items, a class-rated trailer hitch receiver combined with a sturdy hitch cargo carrier or tow dolly is safest. Ensure the hitch is rated for your vehicle and the load, and always distribute weight evenly. Roof boxes have lower weight limits and raise the center of gravity, making them less safe for heavy loads.
Can I use a soft roof carrier for a long-distance move?
We do not recommend soft roof carriers for long highway trips. They are less secure, prone to flapping, and can leak. For long distances, a hard-shell roof box or a hitch-mounted carrier is more reliable and safer.
Do I need a special hitch to use a cargo carrier?
Yes, you need a trailer hitch receiver that matches the carrier’s shank size (usually 1.25 or 2 inches). The hitch must be rated for the weight of the carrier plus cargo. Many vehicles come pre-wired, but you may need a wiring harness for lights if the carrier blocks your taillights.
How do I ensure my roof box is securely attached?
Follow the manufacturer’s installation instructions carefully. Tighten all crossbar clamps to the specified torque. Use the provided locking mechanisms. Periodically check the tightness during the trip. Avoid overloading and keep heavier items low.
What is the maximum weight I can put on my car roof?
Check your vehicle owner’s manual for the roof load limit, typically 100-165 lbs including the roof box. Exceeding this can damage the roof and affect handling. Always weigh your loaded box to stay within limits.
Our Verdict
After researching and comparing the best car attachments for moving, our top pick is the Thule Motion XT L Roof Box for its excellent balance of aerodynamics, security, and ease of use for soft, lightweight cargo. For those who need to carry heavier items or tow a trailer, the Curt 18115 Class 3 Hitch Receiver paired with the MaxxHaul 70215 Hitch Cargo Carrier offers great versatility and value. Choose based on your vehicle’s capabilities and the type of items you are moving.
