Using Car Top Carrier Without A Roof Rack: Tips And Advice

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If you don’t have a rack on your car’s roof but need additional storage space, don’t worry. The solution is a car-top carrier without a roof rack. 

But, even though the solution is something you can purchase, you are probably not sure which ones are best, how to attach them, and how to load them. 

Here are some tips and the best options for using a soft car top carrier without a roof rack. 

Read: Why Are Roof Racks So Expensive?

Using a Car Top Carrier Without a Roof Rack: General Tips and Advice

Before we get into specific features, a few tips might make using a car-top carrier without a roof rack easier.

  • Don’t over-tighten straps, or you could tear the carrier
  • Install the carrier following the manufacturer’s instructions
  • Install the carrier with the opening away from the wind to the rear of the vehicle
  • Always follow the roof capacity guidelines from your vehicle’s manufacturer
  • Use a step stool to make it easier to reach the top of your vehicle
  • Load the carrier after it’s on the roof
  • Unload the carrier while it’s on the roof
  • Use a helper if you can

A Video: How To Attach A Car Top Carrier Without A Roof Rack

See the Rightline cargo bag from the video on Amazon

Top Five Soft Car Top Carriers 

Here are five recommendations for soft car cargo bags that you can use without a roof rack.

#1. RoofBag Rooftop Cargo Carrier

RoofBag Rooftop Cargo Carrier
  • FITS ALL CARS: With or without rack, sunroof, moonroof. The original RoofBag car roof cargo carrier was designed in the USA to safely fit any model car. The generous dimensions of the 15 cubic feet model (48" L, 38" W, 11"-18" H) are large enough to hold the contents of 5 suitcases. You'll be surprised how spacious it is. It will fit safely on any roof 58" or longer (SUVs, vans, large sedans, pickup trucks). Large Set includes Liner Bags for easier packing and unpacking your rooftop cargo bag
  • MOST SECURE DESIGN: Your belongings are safe at any highway speed with the roof top car cargo carrier boasting the strongest nylon straps: 1.5” wide, 3,000 lbs strong. RoofBag’s exclusive pass-through straps have been safety-tested for 18 years. They don’t interfere with side curtains since they enter at corner of door frame. Door hooks or clips are not safe for most cars in the US: they don’t have the required lip under door gasket. However, if you car has lip, buy door hooks from RoofBag store
  • TRULY WATERPROOF: RoofBag keeps your valued contents dry, offering the benefits of a rigid roof top car cargo carrier and the practicality of a roof cargo bag. Peace-of-mind waterproofness is achieved by making the RoofBag car roof bag from a single piece of waterproof material with no exposed stitching. A double flap protects the zipper and stays in place without the need for velcro. Straps are water-repellent. For ultimate water-tightness, zipper has no gap. Tip: install with logo to the rear

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

Perhaps nothing is more quintessentially American than a road trip in the family car. With the RoofBag cargo carrier, you can travel with the equivalent of up to five suitcases full of stuff on the roof in a safe and secure cargo bag. And it’s made in the USA. 

Constructed from heavy-duty and waterproof fabric, this bag is peel- and tear-resistant, so your stuff will stay dry and safe inside.

The set of two wide seat-belt style straps will keep your cargo secured to the roof even at highway speeds. And the included mat will keep your roof free of scratches.

Installation is a breeze, thanks to clear instructions and a simple design. Set out the mat on your roof, put the logo-end of the carrier toward the car’s rear, pass the 1.5” wide straps through the open doors of your vehicle, and close the doors. 

Instead of being sewn onto it directly, the straps loop through the cargo carrier, adding an extra degree of strength. 

You can’t go wrong with this cargo carrier with customer service based in San Diego, California, and a two-year warranty against defects.


  • Multiple size options
  • Secure, simple fastening system for almost all passenger vehicles
  • Made in the USA, USA-based support
  • Waterproof
  • Protective mat and storage bag included
  • Works with or without roof racks
  • Quiet at highway speed when installed properly


  • Slightly more expensive than some other models
  • Not all sizes/styles are 100% waterproof

#2. Sailnovo Car Roof Bag and Cargo Carrier

Sailnovo Car Roof Bag and Cargo Carrier
  • TEAR-RESISTANT & WATERPROOF: Features three layers of 1000D PVC waterproof material, Sailnovo rooftop cargo carrier bag is twice as strong as other brands' 500D fabrics. We found that other brands could easily tear through the seams, so we doubled up our seams and widened the waterproof zipper flaps!
  • LARGE CARRYING CAPACITY: This premium roof rack cargo carrier 51" (L) X 39" (W) X 17" (H) with 20 cubic feet of storage capacity can hold 5-7 suitcases, camping tents, sleeping bags, and more. Made of soft shell material, it can be folded into a storage bag to save space when not in use!
  • MORE SAFETY: In addition to load capacity, stability is arguably the most important factor in a vehicle's top carrier. Our car roof cargo carriers are designed with 6 built-in reinforcement straps, extra 6 short ties and 2 long straps. For safety reasons, the more straps for securing the carrier to the roof, the better!

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

This cargo carrier from Sailnovo will allow you to store between four and six suitcases worth of stuff on the roof of your vehicle. It works without a roof rack or with one.

The six adjustable straps sew right to the softshell fabric, and the zippers are all covered by flaps to keep things secure and as water-tight as possible. 

Two additional straps come with the cargo carrier for additional fastening as needed. Just open the doors, loop the straps through the car, pull them tight, and click the seat-belt style connectors. Close the door and hit the road. 

Though designed to be very sturdy and resistant to water, this bag is not 100% waterproof, especially in crazy weather at highway speeds. It also doesn’t come with a roof mat to protect against slipping and scratching.

And the sewn-in straps potentially create a stress point that could lead to tears down the road.


  • Competitive Pricing
  • Works with almost any passenger vehicle
  • Simple installation
  • Extra straps


  • Sewn-in straps create stress points and may lead to rips
  • Not waterproof
  • No anti-slip mat included

#3. Whistler Roof Top Cargo Carrier

Whistler Roof Top Cargo Carrier
  • 100% WATERPROOF – Built from Heavy-Duty TARPAULIN for Ultra-Durability & Full Waterproofing So Your Possessions Stay Dry, Come Rain, Sleet, Snow or Hail
  • UPGRADED STRAPS - 2 Commercial Grade WATERPROOF Straps that have a breaking strength of 800 lbs.
  • PROTECTIVE MAT - Includes a High Quality Protective Non Slip Mat to keep your car roof protected and to hold the bag in place
  • STORAGE BAG INCLUDED – When You Aren’t Travelling or Camping, Stow the Roof Bag Securely in the Included Storage Bag; Just Fold, Slide, and Zip
  • 100% SATISFACTION GUARANTEED - We back all our products with a no questions money back 1 Year Warranty.

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

This cargo carrier from Whistler is very affordable, making it a decent choice for budget shoppers. Unfortunately, its straps aren’t as well integrated as other models, and it doesn’t hold up to claims that it is 100% waterproof.

Instead of looping through the carrier, which is the best option, or being sewn to the carrier, these straps simply tighten over the bag after looping through the car’s doors, just like the other bags. But, it never gets as tight as some premium models do. 

This cargo carrier doesn’t stand up to hard use in extreme weather. The included anti-slip mat is kind of flimsy as well, but there is also a storage bag included. It also has the equivalent of four to five suitcases full of stuff. 

The very affordable price might be its best trait, but if you’re going on a short trip in an older car and need to carry some additional gear, this might be a decent solution.  


  • Very affordable
  • Simple fastening system
  • Ample capacity


  • Not waterproof
  • Not as secure as some other options
  • It moves around a bit, even when lashed tightly
  • Forcing straps to make them tighter may damage the vehicle 

#4. Fruno Rooftop Cargo Carrier

Fruno Rooftop Cargo Carrier
  • WATERPROOF – Made of 100% waterproof heavy duty tarpaulin. And the high-frequency technology (melt the fabric and rebond) makes all seams also waterproof. Meanwhile, we use water-resistant zippers and 4" wide zipper flap to keep the water out.
  • UNIVERSAL FIT - No matter if the car is equiped with roof racks or not, it's easy to use the 8 straps on the cargo bag and the 6 door hooks to easily fit it on the car roof. NOTE: It can't work on the rackless cars of which weather-strips are glued to the door frame or doors are sliding-doors.
  • FOLDABLE - 15 CUFT (44"×34"×17") of storage space can easily accommodate two 24"H suitcases, two 20" suitcases and other items. But after folding, this car roof cargo carrier is only 0.8 CUFT space required.
  • SECURITY - Compared with others,we add a reinforced patch between each strap and the bag to prevent straps being ripped off the bag. And you can use the 2 separate lashing straps and the anti-slip mat included to further fix the roof rack cargo carrier to prevent it from falling off the car.
  • GUARANTEE - 1 year warranty for the cargo bag if it doesn't do its job. Please contact us through order page to get the after-sales and we will make it right by refunding or replacing your car top carrier (You don't even have to send back the product).

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

This Fruno cargo carrier is a bit smaller than the others. Instead of having a capacity of four to six suitcases, it can only hold about two suitcases worth of stuff. While it is down on capacity, it is completely waterproof. 

When installed properly with the zipper facing away from the front of the vehicle, water won’t be able to penetrate the plastic-lined tarpaulin carrier. There are eight straps with reinforced patches to strengthen their connection to the carrier.

An anti-slip mat comes with the cargo carrier and two additional extra straps for lashing loads to the roof.

But, this carrier uses a hook system to secure itself to the roof. Sliding doors common on minivans won’t work with this setup.

And, if you have rubber gaskets around your door frames, those will need to be removed or the hook attachments to work. If the gaskets are glued in place, this carrier won’t work. 

The price is fairly competitive, and the customer support is responsive if an issue pops up. They have a one-year guarantee against rips or failure of the waterproofing. And, if you want more capacity, they also offer a larger version


  • Guaranteed for one year
  • Waterproof
  • Competitive Pricing
  • Two sizes available


  • Hook fasteners don’t work with some cars
  • The buckles and straps are fairly thin

#5. KING BIRD Aerodynamic Rooftop Cargo Carrier

KING BIRD Aerodynamic Rooftop Cargo Carrier
  • 【Large Storage Space】20 cubic feet - 52"L x 38"W x 18"H, KING BIRD roof cargo bag will give you more space for your travels, Allow folding when not in use, and pack it into the high quality Oxford storage bag.
  • 【100% Waterproof】The roof cargo carrier are made of heavy PVC fabric + waterproof coating to ensure no surface leakage. 5 "wide zip cover + 5" long Velcro cover the zipper completely and keep it close to the zipper. Finally, double coat the zipper with a waterproof coating. It can do 100% to prevent water from entering the bag.
  • 【Fuel Consumption Reduce】This rooftop cargo carrier is aerodynamic design that significantly reduces wind resistance, compared with other rooftop cargo bag, it consumes less fuel, saving you fuel costs, It also reduces the risk of being torn by the wind and improves durability.

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

This cargo carrier from King Bird uses a hook system to attach to your car’s roof. Sliding doors and doors with permanently mounted weatherstripping gaskets won’t work with this system. So, make sure it is compatible with your vehicle’s design. 

The carrier’s aerodynamically enhanced design reduces wind noise, resistance, and noise. The design may even help with fuel mileage, thanks to increased aerodynamics. 

It features a heavy-duty zipper, additional velcro closures, and a large flap to keep the elements out and your gear inside dry. When installed and sealed properly, this carrier is waterproof. 

It has lots of capacity, with space for four to six large suitcases or the equivalent. Plus, it has a roof protection pad and a TSA-approved combination lock. It’s also available in a smaller capacity model.

Competitive pricing might be a good solution to your cargo-carrying needs. But, it may not last as long as some other models. The attachment points for the straps tend to wear out or tear over time or under very hard use. 


  • Waterproof 
  • Competitive Pricing
  • Two sizes on offer
  • Very aerodynamic


  • Less durable
  • Sometimes prone to tearing
  • Hook fasteners don’t work with some vehicles

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Frequently Ask Questions

Here are some answers to frequently asked questions about using a car-top carrier without a roof rack.

Can you use a roof bag without rails?

Yes, it can go on the roof. You do not require a roof rack. Your car requires side roof rails to secure the roof bag’s straps.

Are rooftop cargo bags safe?

Cargo bags are safe to use as long as they are not overloaded. They should be snuggly strapped to the car. A loosely secured cargo bag may slide or let the wind get under the bag.  

How fast can you drive with a roof bag?

Whenever you drive with a roof bag, it is important to follow the speed limit and never exceed 90 MPH. 


You now have all the facts you need to make the right choice for a car-top carrier for your vehicle without a roof rack. You understand the features that differentiate carriers from one another and how they might best be used for you and your vehicle’s cargo needs. 

If you have a trip coming up, you can cross this shopping item off your list today with any of the top models.  

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Hi, I'm Mac. I'm a self-proclaimed nerd who loves being curious about automotive and travel. I love sharing what I learned about the industries, hence, starting this site. Hopefully, can help provide all the guides you need for your road trips.