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Car Top Cargo Rooftop Cargo Box - 18 cu ft - Black

Car Top Cargo Rooftop Cargo Box - 18 cu ft - Black

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CTC-18S - Aero Bars,Factory Bars,Square Bars,Round Bars,Elliptical Bars Car Top Cargo Roof Box
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Customer Photos

56-1/2 x 38-3/4 x 19. Roof box mounts to your crossbars with U-bolts and hand knobs. Locking lid opens from the rear. Carries camping gear, sports equipment, and other cargo on larger CUVs and full-size SUVs. Durable, HDPE thermoplastic construction. Lowest Prices for the best roof box from Car Top Cargo. Car Top Cargo Rooftop Cargo Box - 18 cu ft - Black part number CTC-18S can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (77)
  • Q & A (68)
  • Videos (3)
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Car Top Cargo Roof Box

  • Car Top Cargo
  • Aero Bars
  • Factory Bars
  • Square Bars
  • Round Bars
  • Elliptical Bars
  • Large Capacity
  • Short Length
  • Black
  • High Profile
  • Rear Access

56-1/2 x 38-3/4 x 19. Roof box mounts to your crossbars with U-bolts and hand knobs. Locking lid opens from the rear. Carries camping gear, sports equipment, and other cargo on larger CUVs and full-size SUVs. Durable, HDPE thermoplastic construction.


  • Cargo box mounts on your vehicle's roof rack to provide enclosed storage for your gear
    • Perfect for carrying sports equipment, camping gear, or luggage for up to 4 people
    • Great for most full-size SUVs and larger CUVs
  • Rear-opening lid lets you load and unload gear from the passenger's side of your vehicle
    • 2 Metal struts hold the lid open
  • Built-in lock secures gear in box and secures box to crossbars
  • Latches on front, rear, and driver's side of box ensure lid is completely closed
    • Can be locked with padlocks (not included) for added security
  • Tool-free installation with included U-bolts, hand knobs, and plates
  • Aerodynamic shape helps minimize wind noise and drag
  • Compact storage - removable lid nests in base when not in use
  • Durable, HDPE thermoplastic construction
  • Matte black finish
  • Made in the USA


  • Application: most round, square, aero, elliptical, and factory crossbars
    • Maximum crossbar dimensions: 3-3/4" wide x 1-3/16" tall
  • Crossbar spread: 22"
    • Can be expanded to a maximum of 31" (requires drilling)
  • Carrying capacity: 18 cu ft
  • Weight capacity: 100 lbs
  • External dimensions: 56-1/2" long x 38-3/4" wide x 19" tall
  • Internal dimensions: 56-1/3" long x 38-1/3" wide x 18-1/3" tall
  • Box weight: 29 lbs
  • Limited lifetime warranty

Car Top Cargo logos

Mounting Diagram

Aerodynamic Design

Aerodynamic Design

Cargo boxes, bags, and baskets are great for transporting gear on your vehicle's roof. A cargo box has the added benefits of an aerodynamic shape that reduces drag and wind noise, a hard shell to protect your gear, and a higher degree of weather resistance. And you can latch and lock a cargo box for added protection against theft.

18 cu ft of Space

The Car Top Cargo cargo box has 18 cu ft of space for sports equipment, camping gear, or luggage for up to 4 people. The aerodynamic shape helps to reduce wind noise and drag. The box opens from the back so you can load and unload it from the rear of your vehicle. U-bolt mounting clamps accommodate most crossbar styles and can be installed in minutes without tools. And the durable yet lightweight HDPE thermoplastic construction prevents warping, denting, or cracking.

Rear-Opening Lid

Rear-Opening Lid

The box features a rear-opening lid so you can load and unload your gear from the back of your vehicle. The lid opens wide enough that you can also access gear from either side of the cargo box.

Metal Strut

The box features 2 metal struts that support the lid while loading and unloading. Each strut raises independently from the base and latches in place on the lid.

Built-In Lock

Rear Lock

The box includes a built-in lock on the back to secure your gear. This lock also deters theft of the box itself because it denies access to the mounting hardware.

Open Side LatchClosed Side Latch

The latches on the front and sides of the box help ensure that the box is completely closed before you get underway.

Security Pins

Three metal pins secure the latches in place. These pins can be swapped out with padlocks (not included) to provide additional security and peace of mind.

Tool-Free Installation

U-Bolt Mounting Hardware

The box installs quickly with U-bolts and hand knobs. Just slip the U-bolts over your crossbars and thread them through the pre-drilled holes in the bottom of the box.

Hand Knobs and Pre-Drilled Holes

Once the U-bolts are in place, set the metal plates over the ends and tighten the hand knobs to secure the box. The box mounts to crossbars with a 22" spread without modification.

Reinforced Area

You can increase the maximum crossbar spread to up to 31" by drilling additional 5/16" holes in the floor of the box. These additional mounting holes should be drilled adjacent to the reinforced area of the box floor.

Rugged Construction

HDPE Thermoplastic Construction

The Car Top Cargo cargo box is constructed of a high-molecular-weight and high-density polyethylene thermoplastic. This heavy-duty material resists scuffs, scratches, and cracks better than ABS plastic. It also holds up to prolonged sun exposure and inclement weather.

Convenient Storage

Car Top Cargo Storage

When the box is not in use, simply remove the lid and place it top down inside the base. This makes it easy to store while taking minimal space.

CTC-18S Car Top Cargo Roof-Mounted Cargo Carrier - 18 cu ft - Black

Item # CTC-18S

Installation Details CTC-18S Installation instructions

Video of Car Top Cargo Rooftop Cargo Box - 18 cu ft - Black

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Car Top Rooftop Cargo Box Review

Today we're going to be taking a look at the Car Top Cargo Rooftop Cargo Box, part number CTC-18S. The Car Top Cargo Box is going to be great for carrying your sports equipment, your camping gear, or your luggage, and keeping it secure on the top of the vehicle, freeing up more space on the interior. Comes with a lock at the back of the box to keep everything nice and secure, prevent theft and tampering. Also on the sides here we have these clamps on the passenger, front, and driver side to keep the top secure. To make sure these don't come undone we have these clip hooks here, however you can remove these and use some small padlocks instead for additional security. To take them off it's really easy. Just push down on the tab here like so to open it up and it slides off pretty easy.

The box offers 18 cubic feet of space for storage for your luggage or your gear, and it has a carrying capacity of 110 pounds. Although you want to double check with your vehicle's manufacturer's instructions to make sure that your roof can withstand that kind of weight. It's also recommended that you spread the weight in the box itself. There should be no more than 30 pounds on either end, and no more than 50 pounds in the middle. With this box opening at the rear you can load your gear from the rear, but it also opens enough on the sides that if you need to get anything from your luggage you can. How this actually attaches to your roof rack, this metal bracket here held down by two turn knobs which are actually connected to a u-bolt underneath to clamp everything on.

Since the turn knobs are on the inside when this is locked down nobody can remove this from your roof rack. How we have this setting on our cross bars, we have it at the factory settings which is going to be 22 inches center to center. You can have this on cross bar spreads up to 31 inches, we're going to have to drill the holes into the bed of the cargo box, and you can only go as far as the reinforced area will allow you to. If we we're going to use the other settings or other cross bar spreads with the open holes that you would have, you would cover those up with tape. This box has a nice aerodynamic shape to it which is going to cut down wind noise and drag while you're driving. The u-bolts themselves on the bottom here, they can fit aero, elliptical, square, and even most factory cross bars.

Where we have the box positioned now as you can see, there's plenty of clearance between the box and the hatch so there won't be any problems there either. Now that we've gone over some of the features, let's go ahead and show you how it installs. Before we actually put it onto the roof of the vehicle we want to make sure our clip hook here is attached to the center clamp up at the front to make sure that the lid will stay secure once it's closed. Okay We're ready to lift it onto our vehicle. I would suggest getting an extra set of hands to help you lift this on because at home it might be a little bulky to try to do this by yourself.

We're going to line it up with our pre-drilled holes over our bars then we're going to try to center it as best as I can on the vehicle. This is up to you, you can put it more towards the passenger or driver side depending on which side you're going to be loading it from, but for today I'm going to go ahead and set it in the center. Again, I'm making sure that the wholes line up properly. All right, that looks pretty good. Now we can open it up and start putting on our hardware. While opening the box I would also suggest having an extra set of hands because it can be kind of tricky to try to do that by yourself as well. Just come up from the back, push open the box, lift up on the metal brackets, put them in place like so. This is how these brackets will work. You'll have this ball portion here on the inside, they'll slide through this area here, and then it will rest down here. You'll do this on both sides. We did move the box around a bit when we're were putting the brackets into place, so we'll go ahead and recenter the box and then go get our clamps. With it recentered we'll taker our metal brackets that come with the kit and we'll set them on top of the two holes for the clamps. We'll do this for the driver side first and then the passenger side. Next we'll take our u-bolts, line them up with the holes, push them through our brackets that we just installed. Then we'll take these tightening knobs and put them on inside the actual cargo box itself. Just make sure they're nice and snug, nice and tight. Don't over-tighten them. All right, we'll repeat this for the other brackets as well. With everything tightened down, now we'll go ahead and load it up pushing in from the back. Once you have all you gear loaded up now we can go ahead and shut the box and lock it down. As you shut this you want to make sure this bracket is on the inside of the box. This going to be on both sides. Next we'll go head and close up our latches, bringing up over the lip here, and pushing down. Again before we lock it into place we'll take our included clip hooks and put those just to make sure these clips don't come undone. You're going to do these on all three around the vehicle. Repeat this for the driver side and then we'll go ahead and lock it in place. That's secure, now we're ready to hit the road. There you have it for the Car Top Cargo Rooftop Cargo Box, part number CTC-18S.

Customer Reviews

Car Top Cargo Rooftop Cargo Box - 18 cu ft - Black - CTC-18S

Average Customer Rating:  4.5 out of 5 stars   (77 Customer Reviews)

56-1/2 x 38-3/4 x 19. Roof box mounts to your crossbars with U-bolts and hand knobs. Locking lid opens from the rear. Carries camping gear, sports equipment, and other cargo on larger CUVs and full-size SUVs. Durable, HDPE thermoplastic construction.

- CTC-18S

Carrier arrived within a few days and the follow up customer service is outstanding. The 18 cubic feet carrier is perfect for golf clubs and other items. It is easy to assemble and install to the roof rails. Looking forward to using it for an upcoming trip. 669087

- CTC-18S

So far so good.... shipping was very prompt and the install wasn't bad. I had to drill new holes in the rear for mounting but no big deal. The plastic is a little lighter gauge than I expected however I'm satisfied with the product. I haven't driven the vehicle with it installed yet but we'll be heading to Yellowstone next week so it'll get plenty of test miles. I'll update the review after using product. 643367

- CTC-18S

Let start from the beginning. The process of search, order and make the decision on the site is extremely easy. The purchasing process was easy and I had the order shipped the same day of the order. The order arrived in 3 days since I made the order, I am still surprised how fast arrived. The assembly process was easy and the instructions covered everything. The only problem I found was that my Subaru rack can't be adjusted. Therefore, I made some little modification to the holes location. Once I did, the roof cargo assembly was completed. To test the modification and the roof cargo performance I drove 300 miles. The car managed perfectly, there was no vibration, sound or anything that ruin a smooth drive. The final rating: Site and Purchase 5+ Delivery 5+ Assembly 5 Overall Performance 5+ I am a happy customer. 451523

- CTC-18S

So this is not the original roof box I had ordered but I am on a time crunch and the manufacturer could not get my original order out to me in the time I needed. Thankfully the folks at etrailer saw my message and called me twice to work things out and even followed up after delivery. As for the box itself it is just mediocre the shell is not very rigid and the hinge system is pretty much useless, the hinge bars must be detached to close the lid and reattached each time to hold it open. The hatch does open wide enough to allow side access but overall quality just seems lacking it is definitely an econobox. I will note however that the folks at etrailer said they would exchange the box for my original choice but I would have to pay for shipping. 436313

- CTC-18S

5 stars for now. I received this the day I was told it would arrive. Assembly was easy. Fits nicely. Going to be driving 3,000 miles and then I will know if I like it. Stay tuned 590321

- CTC-18S

I bought this car top carrier a year ago. I needed extra storage for our pilgrimage to Florida. Yes, we are snowbirds and proud of it. It is approx. 2700 miles round trip. I’m happy to report the carrier worked flawlessly and provided the extra capacity we were looking for. I would highly recommend this carrier for build quality and a great price. We look forward to heading south again this December and with this carrier we have one less problem to worry about. Note, we added tie down straps for extra security. Not sure this is necessary, but it gave us a little more peace of mind. 551055

Great, no regrets
Kevin - 08/08/2019


- CTC-18S

Have had the cargo carrier for a year and love it. I gave it 4 stars, but it should probably be about 4.5. The only reason I didn't give it 5 stars is because it is a little awkward to load as the support arms for the lid are a bit wonky. But once you get them into the locked position, they are fine. Have gone through a couple rainstorms and have had no leaks. Still, I always put everything in there in a plastic trashbag, just in case. All in all, I am very pleased with the product. 485915

It’s working out great!
Alan - 03/18/2019


- CTC-18S

I used this with my 2014 Subaru Forester, yakima roof rack system. I traveled across country, from North Carolina to Arizona, with this on, and it worked great! I had it completely full. I didn't even realize it was on the roof! I would recommend this. 465486

- CTC-18S

I bought this product not knowing much about roof cargo carrier's. I was looking around and doing research when I bumped onto the etrailer website. I decided to browse then finally call etrailer. I had the pleasure of getting Geoffrey as my sales rep. He helped me get my roof rack and this item the roof cargo carrier for my 2014 Honda Accord . I was concerned because I was short on time and I needed it for a road trip to celebrate my daughters birthday in another state. Well after Geoffrey helped me understand what I was buying he also assured me that my items would be delivered very quickly and he was right. I received my items less then a week after I ordered them. I mounted them on my car took me about half an hour to assemble and install on my vehicle. I then went on my road trip and this product was hardly felt while I was driving. If I didn't know that I mounted it I would never had known it was there. No noise, no driving drag. Worked perfectly. There are others a lot more expensive but this 1 is the 1 I needed and I was not disappointed. Thank you Geoffrey and etrailer for all your help will be looking to purchase other things in the near future. You guys made my trip a success. 541265

- CTC-18S

I was looking for a roof top carrier, but didn't want to pay $450 dollars for one. etrailer offered one for less than half this amount. It was offered as easy to install, and it was. I live in The Pacific Northwest and it was pouring rain, today. I checked the carrier and it was dry. This is the second product that I have ordered from etrailer and the delivery has been prompt and the follow up has been great. Keep up the good work. 391284

- CTC-18S

I am not completely satisfied with this product, although it holds things ok. Made of plastic that is very flimsy/flexible. Would be better if it was rigid plastic. Also find the support holders are a bit difficult to put onto the little pegs (can't really see them do to being inside). Purchased for our make and model and still had some difficulty installing. Was not pleasant and I usually enjoy doing projects. 573274

- CTC-18S

This box didn’t work for me. The bottom edge is pretty tall and I couldn’t access it standing In the door of my car and I couldn’t reach the lock. I Would have to carry a step ladder! My bad not theirs! a helpful measurement etrailer could offer would be the height of the lower half of the box. But etrailer was great. Sent label to send it back without any problems! Stayed in touch throughout the process. Their label allowed ship back without eating up my whole refund with shipping costs too! Thanks etrailer! 559693

- CTC-18S

This was perfect! It was exactly as described and easy to install. We used it on our vacation about 10 hours away and no noise and no problems. 399202

- CTC-18S

Excellent products and Service. 473635

- CTC-18S

You get what you pay for and for the money it's not bad. Plenty of room and easy to install. The mounting hardware is wimpy but seems to be doing it's job. I imagine I will upgrade the hardware at some point. The shell it's self is kinda flimsy but when it's all closed up and latched down it stiffens up. Doesn't seem to move at all traveling at highway speeds and I haven't noticed any new wind noise. If you're going to tour the country living out of your car for 4 yrs this is not the cargo box for you. Using it here and there for family vacations seems to be more of what this cargo box can handle. It's not a direct bolt on application for a Subaru Outback but it's not hard to make it work either. I would also recommend getting some lynch pins for the lid clamps instead of the little spring clips that the cargo box comes with. 512507

- CTC-18S

Great product. I moved from New Jersey to Florida with a month stop at Myrtle Beach SC . We had many things we could not ship with the containers so we had to maximize the SUV for things we needed for the month or so .We have a dog so that cut down on the packing space. THE roof top carrier was the perfect answer to the problem. After getting to MB I didn't have to empty the carrier . On the travel we hit rain and wind everything stayed dry and secure going 70 to 80 mph. Worth the price 574536

- CTC-18S

Holds plenty of cargo. Loads easily. Does not seem to affect gas mileage whether traveling empty or full. Only negative is that the braces used to hold the top up when loading are not that easy to hook up. Could use a little better system for the braces. 448536

- CTC-18S

Received this within a week of ordering. Very well packaged and easy to assemble. Top fits together well and the side and front clamps that can lock are a very necessary safety feature not found on all these boxes. Case is a very sturdy plastic not found on some boxes. Assembly is so simple. Looking forward to a great trip. 442837

Product works very well. 3 long trip through rain and no leaks.
waddelll - 10/16/2018


- CTC-18S

We recently purchased the Black 18 Cubic Foot Car Top Cargo Rooftop Cargo Box (Item #CTC-18S) when transporting our daughter and her belongings to college. The carrier is relatively light weight; yet very durable and does not generate elevated noise or vibration when driving at high speeds. It allowed us to store lighter; but bulky items such as linens, blankets and seasonal clothes while freeing up space within our SUV for occupants and heavier items. This was the first time I had used a rooftop carrier and visions of retrieving lost items along the interstate ran through my mind for the first 200 or so miles. Despite some heavy downpours and high winds, we completed the 900 mile journey without incident. Upon arrival, everything within the carrier was fully intact and completely dry. I would highly recommend this product…. it is relatively inexpensive, easy to install and have found it to be a good solution for meeting our travelling needs. 674194

- CTC-18S

Excellent customer service and great pr iduct 581659

- CTC-18S

Works great for me 496379

- CTC-18S

Used it once for a trip where we needed to store two hockey bags full of gear. Had no problem fitting them plus more into the carrier. It was a little tricky at first getting everything lined up but I got the hang of it quickly. Much preferred to the strap down type of carrier. 515649

- CTC-18S

Easy to mount even though mounting holes did not align for my 2010 Hyundai Santa Fe. Just needed to drill holes in exact location for my vehicle. The reason I purchased this cargo carrier was mainly due to all hardware being already mounted.. The customer service rep (Gwen) was very professional and helpful in answering all my questions before I purchased. Trip scheduled for next month thus I am not able to make any statement about performance at this time. 542051

- CTC-18S

This roof top carrier for the price is a great value. I installed this on a 2012 Subaru Outback in about 40 minutes as I had to drill new mounting holes for the rear rack bar. The rack bars on the Outback are not ajustable. Other than that you would not need any tools if your bars are adjustable and would only take 20 minutes to install. From what I see this will work great for our family. 591292

- CTC-18S

Item arrived in good condition. It was very easy to install. Adjusting the crossbars on the car was more difficult than the actual installation of the carrier. Haven't had a chance to really use it and not sure when we will, but so far, we are very happy with it. 764044

Show More Reviews

Ask the Experts about this Car Top Cargo Roof Box

  • How to Determine if Car Top Cargo Rooftop Cargo Box # CTC-18S will Fit Vehicle Crossbars
    Since Car Top Cargo does not fit specific vehicles with their boxes you'll have to check out roof rack to know for sure if the Car Top Cargo Rooftop Cargo Box # CTC-18S will fit. As long as the crossbars are less than 3-3/4" wide x 1-3/16" tall and between 22 and 31 inches apart this box will fit and work well. It's setup to fit 22 inch crossbar spreads and if you need wider than that you'd have to do some drilling.
    view full answer...
  • Roof Rack for 2006 Jeep Grand Cherokee to Carry a Roof Box
    If your 2006 Jeep Grand Cherokee has bars that run across the roof from side to side then the Car Top roof box, part # CTC-18S, will work for you without any other parts. On the other hand, if the two bars you're referring to run front to back along the sides of the roof then you do not have a complete roof rack yet and need to get some crossbars to carry a roof box. If this is the case then I recommend the Malone AirFlow2, part # MPG215, to complete your roof rack. It's a good easy...
    view full answer...
  • Recommended Best-Value Rooftop Cargo Box for 2017 Subaru Outback Wagon
    Perhaps the best overall value in a rooftop cargo box is indeed one of the Thule products, their Force XT cargo box # TH6356B. This box offers 11-cubic-feet of internal capacity and a manageable box weight of only 32-lbs when empty. Locks are included and the Force installs quickly thanks to Thule's Quick-Grip mounting clamps, also included. Thule is great about standing behind their products with service and replacement parts. You might consider a simple accessory for use with the box,...
    view full answer...
  • Car Top Cargo Box Fit Factory Roof Rack of 2016 Subaru Forester
    The Car Top Cargo Rooftop Box # CTC-18S will fit crossbars that are no more than 3-3/4 inches wide and 1-3/16 inches tall. You'll need to measure the bars on your 2016 Subaru Forester to confirm a fit. It also requires a crossbar spread of 22 inches but can be expanded to 31 inches by drilling holes into the box. There isn't a smaller capacity version of this box. For a similar style box that's smaller look at the Yakima RocketBox Pro # Y07191 that is confirmed to fit your Forester....
    view full answer...
  • How to Determine if Car Top Cargo Rooftop Cargo Box # CTC-18S Fits Factory Roof Rack
    If your crossbars are between 22 and 31 inches apart and up to 3-3/4 inches wide the Car Top Cargo Rooftop Cargo Box # CTC-18S will fit and work well on your crossbars. This box doesn't have a fitguide though so I can't check based just on your vehicle.
    view full answer...
  • Will Car Top Cargo Rooftop Cargo Box CTC-18S Fit Rhino-Rack Square Bar Roof Rack on a 2016 Honda Fit
    Yes, the Car Top Cargo Rooftop Cargo Box - 18 cu ft - Black Item # CTC-18S will fit Rhino-Rack Roof Rack - Vortex Crossbars # RRVA118B-2, # RRRLKVA, and # DK438 for your 2016 Honda Fit. The box is designed so that you can drill new holes in the bottom of the box to accommodate the crossbar spread of the roof rack (once installed). I have linked a video review of the cargo box for you.
    view full answer...
  • Could Car Top Cargo Rooftop Cargo Box # CTC-18S Fit Factory Crossbars of 2016 Ford Escape
    Without modification the Cargo Box part # CTC-18S is designed to fit crossbars 22 inches apart that are up to 3-3/4 inches in width. You can increase the maximum crossbar spread to up to 31" by drilling additional 5/16" holes in the floor of the box. These additional mounting holes should be drilled adjacent to the reinforced area of the box floor. We don't have specific fit for this and your Ford Escape, but it should fit the bars pretty easily.
    view full answer...
  • Manufacturer and Construction of Car Top Cargo Rooftop Cargo Box # CTC-18S
    The Car Top Cargo Rooftop Cargo Box # CTC-18S referenced in your question is manufactured by Car Top Cargo. It includes a limited lifetime warranty from the manufacturer. This cargo box is constructed of durable HDPE thermoplastic and is designed to withstand the elements while on the road. With that in mind, there is not a specific foam strip or gasket to prevent water entry. With this or any rooftop cargo box, I recommend storing items inside that will not be damaged if some water...
    view full answer...
  • Rooftop Bag Carrier for 2017 Toyota Prius V That Installs Without A Roof Rack
    There is a type of car rooftop carrier that can mount on a bare roof and NOT require you to purchase and install a roof rack. This type of product, a roof bag, is shown on the linked page. Hard cargo box type carriers like # CTC-18S and metal basket carriers like # 59504 that we offer do require a roof rack for installation. Among my favorite such items is the 18-cubic-foot Rightline Sport 3 Rooftop Cargo Bag # RL100S30. This bag features waterproof material, shielded zippers and double-sealed...
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  • Will Car Top Cargo Box # CTC-18S Fit Factory Roof Rack with Curved Bars
    Presumably you will have the Car Top box # CTC-18S placed to either the far left or far right of the roof rack. In either location the curvature of the bars will not be much of a factor. If mounted in the center of the roof rack there could be issues because the box hardware would have to compensate for the curve on the left and the right instead of just one or the other.
    view full answer...
  • Roof Rack for 2018 Buick Encore to Use Car Top Rooftop Cargo Box
    A roof rack does need to be purchased separately for your 2018 Buick Encore to install the Car Top Cargo Rooftop Cargo Box # CTC-18S. The roof rack used in the video is a Rhino-Rack and is truly the best option for a roof rack for your '18 Encore because it is the best value. The Rhino-Rack is the most budget-friendly roof rack that fits your Encore but is still a very high quality so I strongly recommend going this route. The rack will mount to the flush rails on your Buick and is...
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  • Rooftop Cargo Box for a 2017 Hyundai Santa Fe with Glass Roof
    There is a similar box to the Car Top Cargo 18, part # CTC-18S called the SportRack SkyLine, part # SR7095. This box offers identical storage capacity to the Car Top, and uses a side-loading setup oriented towards the passenger's side. When using these boxes, you'll need a roof rack to mount the box onto. If you don't already have one installed, let me know and I can recommend a good fit for you.
    view full answer...
  • What Crossbar Dimensions/Spread Does Car Top Cargo Rooftop Cargo Box
    The Car Top Cargo Roof Box part # CTC-18S can fit crossbars that are up to 3-3/4" wide x 1-3/16" tall and is designed to fit a crossbar spread of 22 inches, but the spread can be increased to 31 inches if you are okay with drilling holes. Most roof rack crossbars have a bow to them like you mentioned having. This box is designed to accomodate this. You can see that in the picture I attached that shows the box installed on a bowed crossbar.
    view full answer...
  • Cargo box and Roof Rack Recommendation For 2019 Nissan Rogue
    Cargo Boxes are not technically vehicle specific, as long as you have a roof rack on the vehicle you can use a cargo box that is compatible with the bars that you have. The Car Top Cargo Rooftop Cargo Box part # CTC-18S fits the most round, square, aero, elliptical, and factory crossbar as long as they are no bigger than 3-3/4" wide x 1-3/16" tall. You will also need a cross bar spread of 22". Measure from the center of the rear cross bar to the center of the front cross bar for the cross...
    view full answer...
  • Cargo Box Recommendation to Fit Stroller that Measures 16" x 28" x 21.75"
    We have the Car Top Cargo Rooftop Cargo Box # CTC-18S which is one of the few that has the internal dimensions you need at 56-1/3" long x 38-1/3" wide x 18-1/3" tall and can fit crossbars that are between 22 and 31 inches that are up to 3-3/4 inches wide.
    view full answer...
  • Would Car Top Cargo Box # CTC-18S Fit Factory Crossbars of 2019 Honda Pilot
    I looked up the factory roof rack on your 2019 Honda Pilot and was able to find that the crossbar spread is adjustable which means you could easily fit the Car Top Cargo Rooftop Cargo Box # CTC-18S to it since this box requires a 22 inch wide crossbar spread. I attached a review video for this for you to check out as well.
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  • Recommended Roof Top Cargo Box for a 2014 Toyota FJ Cruiser
    When it comes to picking out the best roof cargo carrier for your 2014 Toyota FJ Cruiser a lot really depends on what you are looking to use it for and what you are hauling. Typically the higher end cargo boxes are made out of stronger materials which helps them to be a little more sturdy than some of our entry-level options. If your Cruiser just has the side rails that run front to back but no crossbars then you will want to install Thule WingBar Evo Bars # TH711400 for Silver or #...
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  • Recommended Aero Roof Rack and Rooftop Cargo Box for 2019 Honda HR-V
    I am happy to help you with an aftermarket roof rack for your 2019 HR-V so you can use a rooftop cargo box like the 18-cubic-foot Car Top Cargo # CTC-18S or its 'little sister' 9-cubic-foot model # 283-RBSM. Let's start with a roof rack. Since your HR-V has the roof style with the flush-mounted front-to-back rails I recommend the Rhino-Rack Vortex Aero system made of parts # RRVA126B-2 and # RRSX100. I like this rack for your HR-V because it offers the same kind of quiet aerodynamic...
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  • Will Car Top Cargo Rooftop Cargo Box Fit Factory Crossbars on 2013 Dodge Caravan
    The Car Top Cargo Rooftop Cargo Box # CTC-18S referenced in your question is designed to fit most factory crossbars. To ensure that this will work with the crossbars on your 2013 Dodge Caravan, I recommend taking a couple of measurements. You will want to measure the height and width of the crossbars themselves, as well as the distance from crossbar to crossbar on the roof (crossbar spread). The Car Top Cargo Box will fit crossbars that are up to 3-3/4 inches wide and 1-3/16 inches...
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  • Cost Effective Roof Rack for a 2016 Hyundai Santa Fe
    The only thing you will need to install the Car Top Cargo Rooftop Cargo Box part # CTC-18S on the roof of your 2016 Hyundai Santa Fe is a roof rack. If you do not already have one, I recommend using the Rola Sport Series Roof Rack part # 59766 if you have factory raised side rails or part # 59779 if you have a bare roof. Both options have aero crossbars which will reduce wind noise and drag in addition to containing keys for security. You may or may not need to drill new holes into the...
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  • Will the Car Top Cargo Box # CTC-185 fit a 2014 Honda Pilot.
    Yes. As long as your crossbar spread on your 2014 Honda Pilot is 22 inched from center to center of the bars. Your crossbar dimension's must not exceed 3-3/4 inches wide and 1-3/16 inches tall. If they do, then the Car Top Cargo Box # CTC-185 will not work on your Honda. If you can provide use with you roof rack dimensions, then we will be able to find a cargo box that will be a confirmed fit for your vehicle.
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  • 2016 Jeep Renegade Roof Rack and Cargo Box Fit Recommendation
    To see all of the roof rack options we offer for your 2016 Jeep Renegade check out the link I attached to see them all. A very popular great option we have is the Thule Aeroblade Edge part # TH7503B-TH7503B which is a confirmed fit. For a cargo box the Thule Pulse # TH614 is a great fitting box which provides up to 14 cubic feet of storage space.
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  • CTC Roof Top Cargo Box Fit on 2011 Honda Pilot with Factory Side Rails and Crossbars
    The Car Top Cargo Rooftop Cargo Box # CTC-18S will mount to any vehicle's roof rack crossbars that are up to 3-3/4-inches wide x 1-3/16-inches tall and that are spaced apart by 22-inches on centers. The box will still mount with wider bar spreads if you drill additional holes in the bottom of the box; (you can seal up extra holes using # LT37467 or black silicone caulk from your local hardware store). Rear hatch clearance just depends on your chose mounting position for this great-value...
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  • Will Car Top Cargo Rooftop Cargo Box # CTC-18S Fit 2018 Lexus RX 350
    As long as the crossbars of your 2018 Lexus RX 350 are less than 3-3/4" wide x 1-3/16" tall and are spaced between 22 and 31 inches apart the Car Top Cargo Rooftop Cargo Box # CTC-18S will fit. You should note though that this box only comes ready to fit bars spaced 22 inches apart. If you had wider spacing than that you'd need to drill new holes.
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  • Will the Car Top Cargo Rooftop Cargo Box CTC-18S Fit a 2013 Toyota Highlander
    Yes, the Car Top Cargo Rooftop Cargo Box part # CTC-18S will fit your 2013 Toyota Highlander. However, you will need to drill a few new holes into the bottom of the box in order to accept your 31" crossbar spread but this is totally okay as it is recommended by the manufacturer. The majority of our other price point cargo boxes will require you to drill holes into the bottom of the box to accept your 31" crossbar spread as well.
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  • Recommended Roof Rack and Cargo Box for 2004 Toyota Camry
    If you are wanting to mount a cargo box like the Car Top Cargo Rooftop Cargo Box # CTC-18S that you referenced to the roof of your 2004 Toyota Camry, you will first need to install a roof rack system. For your vehicle, I recommend the Rhino Rack Aero Bar Roof Rack. This system consists of # RRVA126B-2 for the two Crossbars, # RRRLKVA for the 2500 Series Legs, and # DK028 for the Fit Kit. This will provide you with a durable roof rack system and a weight capacity of 165 pounds. The crossbar...
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  • Locking Function of the Car Top Cargo Roof Box
    The Car Top Cargo Rooftop Cargo Box - 18 cu ft - Black # CTC-18S does come with a lock and key. It also comes with clips to install around the other clip areas, but for additional security you can add the Master Lock Covered Solid Body Padlocks - 1/4" Shackle Diameter (2 Pack) # 141T.
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  • Will Car Top Cargo Box Fit 2015 Chevrolet Equinox?
    The fit of the Car Top Cargo Rooftop Cargo Box # CTC-18S will depend on the crossbars of your 2015 Chevrolet Equinox and not the roof itself. The cargo box will fit on most round, square, aero, elliptical, and factory crossbars that have a minimum spread of 22" and are a maximum of 3-3/4" wide x 1-3/16" tall. To determine if you will be able to open the rear hatch of your Equinox without interference from the cargo box, measure from the front crossbar to the line where the roof and hatch...
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  • Will Car Top Cargo Rooftop Cargo Box # Fit on a 2016 Lincoln MKX With Aftermarket Roof Rack
    For a roof rack system on your 2016 Lincoln MKX I recommend going with the Thule AeroBlade Load Bars, # TH7602B-TH7603B for Black and # TH7602-TH7603 for Silver, and Fit Kit # THKIT4047. This will give you a complete roof rack system on your MKX that will work well with a roof top cargo box. To add some security to your roof rack you can use the Thule One-Key System Lock Cylinders # TH450400 to lock your roof rack and accessories. Thule says in the instructions to place the crossbars...
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  • Car Top Cargo Rooftop Cargo Box Compatibility With Factory Crossbar Width And Spread
    The Car Top Cargo Rooftop Cargo Box - 18 cu ft - Black # CTC-18S will fit on your factory crossbars of your 2005 Ford Explorer as long as it has maximum crossbar dimensions of 3-3/4 inches wide x 1-3/16 inches tall and the crossbar spread is 22" center on center. The spread can be expanded to a maximum of 31" but this requires drilling into your box.
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Info for this part was:

Installed by:
Zack K
Video by:
Andrew K
Video by:
Joshua S
Video by:
Jonathan Y
Edited by:
Tyler C
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Jacob T
Video Edited:
Chris R
Updated by:
Sarah W
Updated by:
Matthew S
Updated by:
Ronnie R
Written by:
Daron K
Test Fit:
Savanna B
Test Fit:
Brent H
Test Fit:
Ryan G
Test Fit:
Adam E

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