BAKFlip F1 Hard Folding Tonneau Cover for 2020-2026 Chevrolet Silverado / GMC Sierra 2500/3500 HD (6'9" Bed)

Brand: BAK Industries FREE Shipping Low Stock
$1,399.99
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F1 On A Toyota Tacoma

The BAKFlip F1 fitted to a Toyota Tacoma, showing the cover on a mid-size bed and how the panels fold flat against the cab. A helpful proportion check if you run a Tacoma, and a clear look at the gloss-black FRP top surface in daylight.

Unboxing The BAKFlip F1

RealTruck unpacking a BAKFlip F1 and laying the contents out: the pre-assembled panel stack, the two clamp-on aluminum side rails, the clamp set and hardware kit, and the install guide. Two minutes well spent before an install, since it lets you confirm nothing is missing from your carton and shows how the panels are packed and protected in transit.

F1 Install On A Ram 1500

The BAKFlip F1 going onto a 2009 and newer Dodge Ram 1500 in RealTruck's install video, covering the full job in around eight minutes. Ram bed rails and the RamBox-era rail caps differ enough from the GM and Ford profiles that it is worth watching the Ram-specific version if that is what you drive.

Frequently Asked Questions

Straight answers on specs, fit and support

Is the 6'9" bed the same as the old 6'6" HD bed?

No, and this is the trap on these trucks. GM lengthened the HD standard bed to 6'9" when it redesigned the 2500 HD and 3500 HD for 2020. If your truck is a 2015-2019 HD with the 6'6" box, you want BAK-772121 instead.

Does it fit a dually 3500 HD?

Yes. Dual rear wheels change the fenders and the track width, not the bed opening, so the 6'9" box on a 3500 HD dually takes the same cover as the single-rear-wheel truck.

Will it work with the gooseneck or fifth-wheel hitch prep in the bed floor?

The F1 clamps to the bed rails and clears the bed floor, so the factory hitch prep puck holes are not affected. You will need to fold the cover forward, or take it off, to use a gooseneck ball or a fifth-wheel plate.

Can I leave the factory cargo tie-down system in place?

Yes. The rails clamp above the factory track on these trucks, so you can keep the track and cleats and go on using them under the closed cover.

How much load can I put on the closed cover on an HD?

400 lb evenly distributed, the same as every F1. The truck's payload is much higher than that, so treat the cover rating as a separate limit: spread the load across the panels, strap to the bed rails, and put anything heavy in the bed rather than on the lid.

Will it keep the bed dry on a work truck?

It keeps rain, snow, and road spray off your cargo. EPDM perimeter seals close the gap at the rails, rounded hinges shed water, and drain tubes route it out at the front of the bed. It is water-resistant rather than sealed, so clear snow and ice off before you fold it, both for the seals and for the warranty.

What our customers say

4.4 · 12 reviews

Les Verified
02/22/2023

AT4 1500

Fairly easy install. Looks great and is low profile to the bed. Wish it was a little longer as it does not have much overlap in the front or back of the bed. Happy with the product.

Michael Verified
01/25/2023

Good stuff

High quality and easy to install.

Dorrell Verified
01/11/2023

Love it

This is my 3rd one so installation was a breeze,. Beautiful finish.

Bob F. Verified
11/25/2025

Looks great, works great, lots of leaks around tailgate

Overall easy to install and looks great. Seems to be excessive leaking around tailgate when it rains or go through the carwash. Need a better seal there.

Jeffrey P. Verified
12/29/2022

Nice truck cover

I am very pleased with this truck cover. Easy to install, but did require two people. Looks great and I am looking forward to having this for years.

Anonymous Verified
02/24/2022

Great product and easy to install

Great product very easy to install and my truck looks great

Anonymous Verified
02/23/2022

Top of the line hands down

Beautiful, durable and just looks perfect . Worth every penny .

Jeromy Verified
07/16/2025

Pre-2025 design was much better. 2024 GMC 2500

The original design for the F1 was so much better

Anonymous Verified
01/23/2022

Looks Great, Easy to Install & Provides Security

Looked at many options and decided this was the best fit for the money. Very sturdy and fits perfect. Was a breeze to install and functions as advertised.

ROBERT Verified
01/05/2022

Great hard cover!

Back in 2011 I purchased their original f1 came out. This one is lighter then my old one. The rear seal is also better then the rubber they used to have. Now its metal with a rubber seal sitting on the tail gate. So far I love the new cover!

Henry M. Verified
02/09/2020

Looks great and very easy

Looks great and very easy to install after I laid everything out it took about an hour to do by myself

Steven C. Verified
05/28/2025

Beware: Not compatible with BAKbox!

I bought F1 to replace a hail damaged G2. After installation I discovered that the rails have no groove for mounting my existing BAKbox. Support on the phone said Yes, we redesigned the rails on all tonneaus a couple of years ago and BAKbox doesnt mount on any of our current rails. Nothing on the website when I ordered the F1 gave any hint my BAKbox would not mount!