Ford Transit Roof Rack: Best Option & How To Install

Ford Transit Roof Rack: Best Option & How To Install

Roof Rack for Ford Transit, Sprinter Van, ProMaster, Flatline Van Co
Photo of author

A roof rack is a great way of adding real estate to the roof of your Ford Transit, Sprinter, or ProMaster van! It’s also a safe and easy way to attach accessories such as solar panels, storage box, awning, etc. Fortunately, there are now aluminum roof racks designed for DIY’ers like us: these are modular (adapt to any roof layout), low profile (aerodynamic), and fairly priced. We didn’t install a roof rack on our first van conversion, but we’re definitely adding one to our new Transit! We found the best option to be the Flatline Van Co. Low Pro roof rack; keep reading to learn why and how to install it.


Disclosure: This post contains affiliate links, which means that if you click a product link and buy anything from the merchant (Amazon, eBay, etc.) we will receive a commission fee. The price you pay remains the same, affiliate link or not.


1. Roof Rack or Not?

1.1. No Roof Rack: Our Solution

We personally decided against a roof rack when we built our Ford Transit van in 2016 because we didn’t really see the point for our needs and there was, at the time, no elegant affordable options. Let’s see how we managed that:

We attached our solar panels directly to the roof (with VHB tape); it’s simple, cheap, and low-key (you can’t really tell there are solar panels on the roof):

Solar Panels Installation

We attached our Fiamma awning directly to the van (we had to drill into the van and that’s definitely a permanent thing):

FarOutRide Fiamma F45S Installation (600width)

To access the roof, we carry a portable, telescoping ladder (Amazon). The ladder is stored inside our garage and we have to set it up each time we need to access the roof:

Cleaning the solar panels

Do we have any regrets of going with no roof rack on our first campervan back in 2016? Well, let’s see the pros and cons of a roof rack first!

1.2. Roof Rack Benefits

We’re all about functionality. If we’re to install a roof rack, we must be able to justify the cost, weight, extra height, and time it takes to install. Let’s see the benefits of adding a roof rack:

Roof AccesSories

Easier and safer to install accessories to the roof (roof fan, solar panels, awning, etc.). Less chance of damaging the roof and better work surface during the install process. No need to drill the van (permanent) for the awning install.

Roof Access

Easier access to the roof with the permanent side ladder to clean the solar panels from dust (occasionally), snow removal (frequently in winter), or just to hang out.

Terrasse With a View

Possibility of adding a terrasse, to hang out and check out the view!

1.3. So, No Roof Rack, Any Regrets?

Fast forward years later, the solar panels, the roof fan, and the awning are still holding strong. No issues here. However, considering the benefits above, and considering there are now some really cool roof rack options on the market, we’re definitely going WITH a roof rack this time. Keep reading!

1.4. DIYvan Roof Rack Kit: An Alternative We Also Considered

We also considered DIYvan’s 80/20 roof rack kit as a lower cost option. Parts needed:

  1. Roof Rail Kit (QTY = 1): Ford Transit or Ram ProMaster.
  2. Front & Rear Crossbars (QTY = 2): Ford Transit and Ram ProMaster.
  3. Crossbars (QTY = 5): Ford Transit and Ram ProMaster.


DIYvans Roof Rail Kit for Transit and ProMaster
DIYvan Roof Rail Kit on a ProMaster Van

Here is a table to compare both options (same number of crossbars) for our Ford Transit 148″ Extended:

DIYvan Roof Rack KitFlatline Van Co
Cost$1,907$2,590 ($1,995 with no ladder)
Aerodynamic FairingNOYES
Max Load Allowed20lbs per landing pad (so 200lbs total for our 148″ Transit Extended)Per BEMM (418.9lbs)
LookA bit roughMore refined

The cost saving is marginal and for a bit more we can get a ladder, so Flatline Van Co it is!

NOTE: If your goal is only to mount your solar panels, there are a few cheaper options; no need to add an entire roof rack.

2. A Roof Rack for DIY’ers: Flatline Van Co Low Pro

If you went through our Build Journal, you know we like to make everything ourselves (DIY): the only exception is for our mosquito screens and, more recently, our insulated magnetic window covers. Indeed, sewing is not our area of expertise, so we decided to “go pro” and splurge on quality products; the time we saved was spent building our van instead.

Similarly, we decided “go pro” for the roof rack as well. We really like the latest “Low Pro” modular roof rack that Flatline Van Co makes. It looks like a premium rack, but with a more subtle look, cost and versatility of a DIY solution:

Transit Roof Rack Usable Dimensions
Available for:
  • Transit 148″ Mid Roof
  • Transit 148″ High Roof
  • Transit 148″ High Roof Extended
Sprinter Van Roof Rack Usable Dimensions
Available for:
  • Sprinter 144″ Low Roof
  • Sprinter 144″ High Roof
  • Sprinter 170″
ProMaster Roof Rack Usable Dimensions
Available for:
  • ProMaster 136″
  • ProMaster 159″ Regular
  • ProMaster 159″ Extended

Why we like the Flatline Van Co Roof Rack

It’s built for the DIY’ers, which means:

It’s about half price of their competitors (e.g. Aluminess or such), so it’s a roof rack we can actually afford.


The crossbars can be adjusted for an unlimited amount of options and to fit pretty much any roof layout. And they are slotted (10 series 80/20 aluminum extrusion), so it’s easy to bolt accessories to them using T-Nut hardware.

Easy Installation

It ships (free) flat-packed in a box. It’s assembled on the roof, so it doesn’t have to be lifted with special equipment. All the brackets and hardware are included.

Low Profile

More aerodynamic than a tubular rack (especially with the front fairing that is now included with the rack system).


If you’re in the market for an awning, definitely consider the Fiamma F45S. It’s one of the best awning out there AND the FVC roof rack is designed to mount a Fiamma F45S directly to it (bolt-on), neat!

3. Installation

Ford Transit


4 hours



$2,590 USD

($1,995 rack + $595 ladder)


95 lbs

(70 lbs rack + 25 lbs ladder)


ItemDescriptionBuy Link
Roof Rack & Ladder Flatline Van Co Low Pro with Side
Sikaflex-221To seal around the landing pads (Step 3.1)Amazon
Rust-OleumIn case you need to grind clearance (Step 3.1)Amazon
Mineral SpiritsTo prep surfaces and clean uncured Sikaflex excess (IPA or Paint Thinner would also work as alternate)Amazon


ItemDescriptionBuy Link
7/16″, 9/16″, 13mm Wrench or SocketRoof Rack, Side LadderAmazon
5/32″, 7/32″ Hex Bit (or Allen Key)Roof Rack, Fairing & Side LadderIncluded
Power Drill with 3/8″ Hex SocketSide Ladder self drilling screws (step 3.6)Amazon
Burr Rotary FileTo grind clearance if threaded holes are offset (Step 3.1)Amazon
SandpaperTo smooth sharp edges after grindingAmazon
Caulking GunTo seal landing pads (Step 3.1)Amazon
Putty KnifeTo remove roof plugs and scrape sealantAmazon
Shop TowelsTo clean surfaces before & afterAmazon


Installation ManualsPDF’s (Transit, Sprinter, ProMaster)

3.1. Install the Landing Pads

The Ford Transit has several M8 threaded holes specifically designed to attach a roof rack (or accessories). We’re going to use these:

The Max Load Static comes from the BEMM and ensure roof structural integrity (e.g. max load when parked, with people on it). The Max Load Dynamic comes from the Owner’s Manual and ensure adequate stability & control (when driving, due to the high center of gravity).

3.1.1. Each M8 threaded hole is protected by a plug; remove the plug to gain access to the hole and clean the sealant (the sticky black stuff) with Mineral Spirits (or a solvent of your choice such as IPA or paint thinner):

Roof Rack Ford Transit Installation - Flatline Van Co Low Pro-1 (Remove Plug and clean sealant)

3.1.2. Because of manufacturing tolerances, some holes may be out-of-alignment. In this case, use a burr rotary file to grind clearance, smooth the edges with sandpaper, clean the area from all metal shavings, and touch-up bare metal with corrosion-resistant paint (out of 10 holes, we had to grind 1):

Roof Rack Ford Transit Installation - Flatline Van Co Low Pro-2 (grind for clearance and touch up with paint)

3.1.3. We applied a bit of sealant around the bolt cutout to create a faying-surface seal (the sealant will squeeze and expand when torquing the bolt, filling the tiny gaps and cracks):

Roof Rack Ford Transit Installation - Flatline Van Co Low Pro-3 (faying surface sealant)

3.1.4. Install the landing pad with the provided M8 bolt (13mm hex socket) and a sealing washer:

Roof Rack Ford Transit Installation - Flatline Van Co Low Pro-4 (landing pad hardware install)
Roof Rack Ford Transit Installation - Flatline Van Co Low Pro- (Landing Pad Installed Overview)
Landing Pads: DONE!

3.2. Install the Side Rails

3.2.1. Install the side rails using the provided hardware (1/4-20 carriage bolt, washer & nylock). At this point, leave the hardware a little loose:

Roof Rack Ford Transit Installation - Flatline Van Co Low Pro-5 (Side Rails Install)

3.2.2. After the side rails are in place, install the connecting brackets using the provided hardware (1/4 screw, washer & nylock). These can be tightened to their final torque right now:

Roof Rack Ford Transit Installation - Flatline Van Co Low Pro-6 (Connecting Bracket Install)
Roof Rack Ford Transit Installation - Flatline Van Co Low Pro- (Side Rails Installed Overview)
Side Rails: DONE!

3.3. Install the Cross Bars

3.3.1. Loosely install all the crossbars (except do not install the one at the front, because the fairing has to be attached to it first) via the set pair of holes or via the slots, depending on your roof layout (fan, solar panels, etc). We’re still undecided about our layout, so we simply used the set pair of holes and we’ll move the crossbar later if needed. The modularity is one of the coolest feature of these roof racks! 🙂

Roof Rack Ford Transit Installation - Flatline Van Co Low Pro-7 (Crossbars Installatin)

3.4. Install the Fairing

3.4.1. Preinstall the hardware (1/4-20 button head screw, lock washer & t-nut insert) onto the 3 center brackets and slide them into the crossbar (refer to next photo for orientation & position):

Roof Rack Fairing Installation - Flatline Van Co Low Pro-1 (slide brackets into crossbar)

This is the center brackets orientation and position (the fairing shouldn’t be installed at this point, pretend it’s not there!):

Roof Rack Fairing Installation - Flatline Van Co Low Pro-3
(click to enlarge)

3.4.2. For the next few steps, we got carried away and forgot to take photos… So here is what happened in chronological order:

  1. Slide the 3 center brackets into the T-Slot and tight the hardware to the crossbar. You can use a tape measure to locate the bracket (previous photo), or use the holes in the fairing as a guide.
  2. Install the gasket by pressing it onto the lower edge of the fairing (we had to spread out the lips at a few places, and we used a hammer to gently tap to press it in. GENTLY is the keyword here!). The textured surfaces of the gasket and the fairing go on the same side.
  3. Install the fairing to the center brackets (1/4-20 flange head screw, washer & nylock). The washer goes on the nylock side. Tight snug, but do not over-tighten to prevent damage to the plastic fairing!
  4. Install the side rails bracket to the fairing (1/4-20 flange head screw, washer & nylock). Tight snug.
Roof Rack Fairing Installation - Flatline Van Co Low Pro-3

3.4.3. Slide the fairing assembly into the roof rack and attach the crossbars to the side rails (1/4-20 flange head screws):

Roof Rack Fairing Installation - Flatline Van Co Low Pro-4 (crossbar)

3.4.4. Attach the fairing to the side rails (1/4-20 flange head screws, washer & nylock):

Roof Rack Fairing Installation - Flatline Van Co Low Pro-5

That should be it! You can adjust the fitting as required by loosening the hardware (as most brackets are slotted to allow small adjustments).

3.5. Tighten All The Loose Hardware

Remember we left the hardware between the side rails and the landing pads a little loose (step 3.2)? It’s now time to tight them to their final torque! We started with the crossbars and then proceeded with the landing pads. And while you’re at it, make sure you didn’t let any other hardware loose 😉

3.6. Install the Side Ladder

3.6.1. Assemble the ladder upper & lower halves together using the two (2) couplers with the 1-4/20 screws:

Roof Rack Side Ladder Ford Transit Installation - Flatline Van Co Low Pro-1

3.6.2. Bolt the ladder to the side rail of the roof rack (leave it loose at this point):

Roof Rack Side Ladder Ford Transit Installation - Flatline Van Co Low Pro-2

3.6.3. Attach the mount plate to the ladder (leave it loose at this point):

Roof Rack Side Ladder Ford Transit Installation - Flatline Van Co Low Pro-3

3.6.4. Attach the mount plate loosely to the van, push the mount plate as high as you can, then tighten the hardware (some vans may not have the required holes, in this case use the mount plate as template to drill two 1/2″ holes):

Roof Rack Side Ladder Ford Transit Installation - Flatline Van Co Low Pro-4

3.6.5. Tighten the remaining ladder loose hardware (at the side rail and to the mount plate), while making sure the ladder is up and straight:

Roof Side Ladder Installation - Flatline Van Co Low Pro-4
Looks good to me.

3.6.6. Install 3 or 4 self-drilling screws to the mount plate and to the structure of the van:

Roof Rack Side Ladder Ford Transit Installation - Flatline Van Co Low Pro-5
Roof Rack Installation - Flatline Van Co Low Pro-Final

3.7. Final Important Step

Climb up and down the ladder 7 or 8 times, and stare at the rack for 10 to 15 minutes from all the angles. There is no good reason to do this, but we swear that’s what you’ll do anyway 😂

Sprinter Van

Flatline Van Co. Roof Rack Installation Guides for Sprinter Vans (PDF)

Ram ProMaster

For 2022, Flatline Van Co finally released a roof rack for the ProMaster. Good news!

Flatline Van Co. Roof Rack Installation Guides for Ram ProMaster (PDF)

4. Lessons Learned

We’re pleasantly surprised on how the roof rack was straightforward to install! It truly is a bolt-on solution, and the instructions are clear and accurate. So not much to mention here!

5. Long Term Review

At the time of writing these lines, we installed our Flatline Van Co roof rack just a few days ago. It’s still too soon for a review! But so far, the rack feels solid and we really dig the look 🙂 Very happy with it!

Update a few months later: After getting up to highway speed (over 65 mph) a few times, we didn’t notice any noise coming from the roof rack. We honestly expected some noise, so we’re quite happy with that! The aerodynamic fairing is doing its job! 🙂

6. Impact of Roof Rack on Gas Mileage

Accessories installed outside the van will have an impact on gas mileage (larger off-road tires are no exception!). Unfortunately, because we’re in the middle of the mountains here in British Columbia, we’re not able to quantify the gas mileage we lost due to the roof rack. That’s unfortunate, it’s data we wished we had, but because of our geographic location and the nature of our driving, our gas mileage is all over the place. Any data would be insignificant.

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About us



Hello! We’re Isabelle and Antoine 🙂 In 2017, we sold our house (and everything in it), quit our engineering careers, and moved into our self-built campervan. Every day is an opportunity for a new adventure... We’re chasing our dreams, and hopefully it inspires others to do the same!

Heads Up: Exclusive Deals!

Thanks to all of you, we managed to negociate group discount on these. Strength in numbers!

22 thoughts on “Ford Transit Roof Rack: Best Option & How To Install”

  1. Hello Antoine, I’m wondering what your experience has been with wind noise with the side mounted ladder. I’ve been looking at a Prime Design AAL rear van door Model 8011 for the high roof transit. Seems as if it would be a quieter and a more aerodynamic design. Do you have any experience with this ladder or thoughts about it? Thanks for your time. Brian

  2. Hi, 2 questions .. 1- what kind of sealant did you use on the mounting brackets? 2- any details on how to attach solar panels to the 8/20 crossbars?

    Thank you

  3. I see you moved your roof fan to the rear of the new van. Reasons why? I’m getting ready to install mine and have been debating the pros/cons over the bed vs in the galley. Thanks for all the great info./content.
    Side note – tried signing up for email but won’t go through. It’s not blocked so don’t know what’s up.

    • We haven’t install the fan on our new van yet, what you seen is probably an example image 😉

      Oh, thanks for letting us know about the email signup. You made us realize it’s been broken for months 🙁 It should be working now! Thanks again.

  4. Hi! I’ve been using your system for my transit conversion- but with a different interior layout. electricity and solar happened this weekend! quick question. DO you happen to know what kind of carriage bolt will fit in the cross bar channel? want to do a “roof deck” thanks!

  5. Hello
    I just got my flatline rack and will be installing soon on 148 medium roof,
    Have you got chance yet to see if there is much of mpg penalty with this rack?
    Also will you be installing awning on this rack and if so which awning are you
    Thanks David

  6. How much was it to get it shipped up from the US to BC? Were their custom/duty fees on top of shipping costs? I’m in Ontario, the estimated freight cost is $180 CAD and I’m worried I’ll get hit with another couple hundred to get it over the border.

  7. Hi guys, do you like the FVC newer model over the original. If so what are the differences ?
    Thanks for any advice,

  8. Hey there! Can you share the clearance between the side-rails and the roof of the van? I’ve already placed my ‘portal’ for the wires from the solar panel into the roof of the van, and am concerned the ‘entry box’ is too tall to fit underneath the side-rails of the Flatline Van Co roof rack. Thank you!

  9. Love the look of the new roof rack style against the blue van! Thanks for detailing the install steps, great writeup as always. Would really appreciate any gas mileage comparisons between before and after the rack. Hoping the lower profile allows only a modest gas mileage loss.

    • Hey thanks!
      Unfortunately we don’t have data for the gas mileage. We are in the mountains (British Columbia) and gas mileage is all over the place, any data would be insignificant right now. Sorry!

  10. Those prices are quite high, imo. The ladders alone are $700. You can get a telescopic one for a tenth of the price. If that’s the mark up across the board then I’ll be looking for a roof rack for around $200. I’m just not down for the Covid tax. Wish you well with your EU trip.

  11. Haf to admit, looks cool. Really. Cool.

    But that’s 2K+ you didn’t pay for that in your first build.

    One one hand, I think it’s safer to bolt things to the roof than glue things to the paint. That’s good. And a good example for people who don’t really know what they are doing.

    And on a second hand, not to be in contention with the first one, it seems you are losing any hopeful ideas of being stealth, what with the Subaru-like racks on the roof and the higher solar arrays. And then to make it worse, let’s just add the ladder on the side.

    Lastly, I wonder about effects of air resistance of a ladder on the side.

    Thoughts on these issues?

    • It’s always about compromises!
      We’re not as stealth, our mpg is probably affected, but we wanted to give it a try on this build anyway. I think I’ll enjoy spending time on the roof, but we’ll see…


  12. Hey there, thanks as always for another detailed guide. We have a 2017 high roof transit (T-350 Eco-boost, non-extended) and installed a similar rack with front fairing. We removed it due to 2-3 mpg fuel economy loss and increased cross-wind sway. We considered removing the fairing alone to check fuel economy with just the rack, but didn’t. We don’t use solar panels (yet) so it was only for an awning and we scrapped that project as well.
    In your follow-up review, I’ll be curious how your experience may differ given a newer 10-spd transmission and longer van vs our setup, and whether you try traveling without the fairing.

    • I have the 2021 EXT HR AWD w/ ecoboost and I put the old model of FVCO rack on with fairing. The milage impact is noticeable, and if I hadn’t used lap sealant over the mounting bolts I would have pulled it off already. I would not recommend it unless you’re absolutely certain that you will need a rack.

      • Thank you both very much for these insights! I was about to buy a rack and plan out a solar setup but I was concerned about everything you just mentioned, as well as the penalty of losing the low-key, somewhat stealthy look. You’ve really helped me to pump the brakes on that purchase and reconsider. Thanks again.


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