# Best Tonneau Cover for F-150 (2026): 7 Picks

> The best tonneau covers for the 2021–2026 Ford F-150: BAKFlip MX4, Gator EFX, Revolver X4s, RetraxPRO MX and more, with part numbers and prices by bed.

- Source: https://truckcoverguide.com/posts/best-tonneau-cover-for-f150/
- Markdown version: https://truckcoverguide.com/posts/best-tonneau-cover-for-f150.md
- Last updated: 2026-11-12

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- The Best Tonneau Covers for the Ford F-150 (2021–2026): 7 Picks by Bed and Budget

 Ford F-150
# The Best Tonneau Covers for the Ford F-150 (2021–2026): 7 Picks by Bed and Budget
  Updated November 12, 2026 By [Truck Cover Guide Editorial Team](https://truckcoverguide.com/about/) [How we research](https://truckcoverguide.com/how-we-research/)

Prices are approximate and change often, so check the current price before you buy.

## Key takeaways

- The 2021–2026 F-150's 5.5 ft box measures 67.1 in at the floor (Ford's spec sheet); cover makers usually call it 5'7".
- Our best overall F-150 cover is the **BAKFlip MX4** (part 448339, about $1,200): automatic latches, a fold that stands upright for 100% access (maker claim) and a 5-year warranty.
- The **Gator EFX** (about $549) is the cheapest lockable hard cover we'd put on an F-150; the **Gator soft roll-up** (about $220) is the budget pick.
- Most F-150 listings also fit the Lightning and Raptor, but a few UnderCover listings stop at 2025: confirm your model year with the listing's fitment tool.

## Our top picks

- 1![BAKFlip MX4 Hard Folding Tonneau Cover](https://truckcoverguide.com/_astro/bakflip-mx4.CoOqV3JL_1Hou5h.webp)Best overall for the F-150: part 448339 for the 5.5 ft bed, about $1,200[BAKFlip MX4 Hard Folding Tonneau Cover](https://truckcoverguide.com/tonneau-covers/bakflip-mx4/)Hard folding · Aluminum panels · 100% bed access · Locks with tailgate8.2**$$$**$PremiumPrice tier: Premium[Check price on Amazon](https://www.amazon.com/dp/B08L44X6NZ?tag=truckcoverguide.com-20)
- 2![Gator EFX Hard Tri-Fold Tonneau Cover](https://truckcoverguide.com/_astro/gator-efx.DzCoSZZ-_1xyIeH.webp)Best value hard cover: part GC24029, about $549[Gator EFX Hard Tri-Fold Tonneau Cover](https://truckcoverguide.com/tonneau-covers/gator-efx/)Hard folding · Aluminum panels · 67% bed access · Locks with tailgate7.7**$$**$$Mid-rangePrice tier: Mid-range[Check price](https://www.amazon.com/dp/B08L71GBX7?tag=truckcoverguide.com-20)
- 3![Gator ETX Soft Roll-Up Tonneau Cover](https://truckcoverguide.com/_astro/gator-etx-roll-up.Cm7pyct7_Z19vqXo.webp)Best budget: Gator soft roll-up, part 139783, about $220[Gator ETX Soft Roll-Up Tonneau Cover](https://truckcoverguide.com/tonneau-covers/gator-etx-roll-up/)Soft roll-up · Vinyl · 100% bed access · Locks with tailgate7.0**$**$$$BudgetPrice tier: Budget[Check price](https://www.amazon.com/dp/B08WCHHYPB?tag=truckcoverguide.com-20)
- 4![BAK Revolver X4s Hard Roll-Up Tonneau Cover](https://truckcoverguide.com/_astro/bak-revolver-x4s.D1QA9SHs_274Nfc.webp)Best hard roll-up: part 80339, about $1,500[BAK Revolver X4s Hard Roll-Up Tonneau Cover](https://truckcoverguide.com/tonneau-covers/bak-revolver-x4s/)Hard roll-up · Aluminum slats + vinyl · 100% bed access · Locks with tailgate8.1**$$$**$PremiumPrice tier: Premium[Check price](https://www.amazon.com/dp/B08WJSTCHZ?tag=truckcoverguide.com-20)
- 5![RetraxPRO MX Retractable Tonneau Cover](https://truckcoverguide.com/_astro/retraxpro-mx.CQ7vuEa8_Z1anuev.webp)Most secure: keyed retractable, part 80378, about $1,917[RetraxPRO MX Retractable Tonneau Cover](https://truckcoverguide.com/tonneau-covers/retraxpro-mx/)Retractable · Aluminum slats · 80% bed access · Keyed lock7.4**$$$$**Top-endPrice tier: Top-end[Check price](https://www.amazon.com/dp/B08L46PC1S?tag=truckcoverguide.com-20)
- 6![Tyger Auto T3 Soft Tri-Fold Tonneau Cover](https://truckcoverguide.com/_astro/tyger-t3.CYc3CeVX_Z1HPxRC.webp)Best budget tri-fold: part TG-BC3F1064, about $250[Tyger Auto T3 Soft Tri-Fold Tonneau Cover](https://truckcoverguide.com/tonneau-covers/tyger-t3/)Soft tri-fold · Vinyl · 100% bed access · Locks with tailgate7.0**$**$$$BudgetPrice tier: Budget[Check price](https://www.amazon.com/dp/B0B94WC2F1?tag=truckcoverguide.com-20)
- 7![UnderCover Ultra Flex Hard Folding Tonneau Cover](https://truckcoverguide.com/_astro/undercover-ultra-flex.OQ-o4ux1_1HwnIY.webp)Best for the full bed: part UX22029, about $1,300[UnderCover Ultra Flex Hard Folding Tonneau Cover](https://truckcoverguide.com/tonneau-covers/undercover-ultra-flex/)Hard folding · Aluminum panels · 100% bed access · Locks with tailgate8.1**$$$**$PremiumPrice tier: Premium[Check price](https://www.amazon.com/dp/B08L44F1TH?tag=truckcoverguide.com-20)

### On this page 13 sections

- [First, which F-150 bed do you have?](#first-which-f-150-bed-do-you-have)
- [The shortlist (2021–2026 F-150, 5.5 ft box)](#the-shortlist-20212026-f-150-55-ft-box)
- [Best overall: BAKFlip MX4](#best-overall-bakflip-mx4)
- [Best value hard cover: Gator EFX](#best-value-hard-cover-gator-efx)
- [Best budget: Gator soft roll-up](#best-budget-gator-soft-roll-up)
- [Best hard roll-up: BAK Revolver X4s](#best-hard-roll-up-bak-revolver-x4s)
- [Most secure: RetraxPRO MX](#most-secure-retraxpro-mx)
- [Best budget tri-fold: Tyger T3](#best-budget-tri-fold-tyger-t3)
- [Best for the full bed: UnderCover Ultra Flex](#best-for-the-full-bed-undercover-ultra-flex)
- [Other F-150 options we checked](#other-f-150-options-we-checked)
- [F-150 accessories worth adding](#f-150-accessories-worth-adding)
- [How to choose for your F-150](#how-to-choose-for-your-f-150)
- [FAQ](#faq)

## Before you choose

- [The 8 Best Tonneau Covers of 2026: Ranked by Type, Truck and Budget](https://truckcoverguide.com/posts/best-tonneau-covers-2026/)
- [How to Measure Your Truck Bed for a Tonneau Cover (and Why Inches Lie)](https://truckcoverguide.com/posts/how-to-measure-truck-bed-for-tonneau-cover/)
- [BAKFlip MX4 vs BAK Revolver X4s: Hard Fold or Hard Roll-Up?](https://truckcoverguide.com/posts/bakflip-mx4-vs-revolver-x4s/)

The F-150 is the truck most tonneau covers are designed around first, which is good news: almost every line we track has a listing for it, often at the lowest price in the range. The bad news is the choice. This guide narrows 16 cover lines to seven picks for the 2021–2026 F-150, with the part numbers and prices we found on Amazon for the common 5.5 ft box, plus notes for the 6.5 and 8 ft boxes.

We haven’t tested these covers ourselves. This is research-based: we used Ford’s spec sheets for bed sizes, the live Amazon listings for fitment and price (checked November 12, 2026), maker specs, and independent tests, which we credit by outlet.

## First, which F-150 bed do you have?

Ford’s spec sheets give three box lengths for the 14th-generation F-150, measured inside at the floor:

| Box | Inside length | What cover listings call it | Cabs |
| --- | --- | --- | --- |
| 5.5-ft Styleside | 67.1 in | 5’7” | SuperCrew |
| 6.5-ft Styleside | 78.9 in | 6’7” | SuperCrew, SuperCab, Regular Cab |
| 8.0-ft Styleside | 97.6 in | 8’ or 8’2” | SuperCab (2021 sheet), Regular Cab |

The 2015–2020 F-150 uses the same nominal lengths, but covers are sold per generation, so a 2018 cover is a different part from a 2023 one in most lines. Pick your exact truck in the [bed size finder](https://truckcoverguide.com/tools/bed-size-finder/#truck=ford-f150-2021&bed=supercrew-5.5) to see the length and the listings we checked. Lightning owners: most 2021+ listings below include the Lightning, but always confirm with the listing’s fitment tool.

## The shortlist (2021–2026 F-150, 5.5 ft box)

| Pick | Cover | Type | Part | Price | Why |
| --- | --- | --- | --- | --- | --- |
| Best overall | [BAKFlip MX4](https://truckcoverguide.com/tonneau-covers/bakflip-mx4/) | Hard folding | 448339 | ~$1,200 | Stands up for 100% access, 5-yr warranty |
| Best value hard | [Gator EFX](https://truckcoverguide.com/tonneau-covers/gator-efx/) | Hard tri-fold | GC24029 | ~$549 | Aluminum, 300 lb rating, half the price |
| Best budget | [Gator soft roll-up](https://truckcoverguide.com/tonneau-covers/gator-etx-roll-up/) | Soft roll-up | 139783 | ~$220 | 5,079 ratings at 4.6 |
| Best hard roll-up | [BAK Revolver X4s](https://truckcoverguide.com/tonneau-covers/bak-revolver-x4s/) | Hard roll-up | 80339 | ~$1,500 | Slats, no canister |
| Most secure | [RetraxPRO MX](https://truckcoverguide.com/tonneau-covers/retraxpro-mx/) | Retractable | 80378 | ~$1,917 | Key lock at any position |
| Budget tri-fold | [Tyger T3](https://truckcoverguide.com/tonneau-covers/tyger-t3/) | Soft tri-fold | TG-BC3F1064 | ~$250 | 7,721 ratings at 4.7 |
| Full bed, often | [UnderCover Ultra Flex](https://truckcoverguide.com/tonneau-covers/undercover-ultra-flex/) | Hard folding | UX22029 | ~$1,300 | Tailgate closes with cover up or down |

## Best overall: BAKFlip MX4

The [BAKFlip MX4](https://truckcoverguide.com/tonneau-covers/bakflip-mx4/) (part 448339, about $1,200) is the cover we’d put on most F-150s. Its aluminum panels latch automatically when you close them and are secured by the tailgate lock, and they fold toward the cab and stand upright on prop rods, which BAK says opens 100% of the bed. You can drive fully open. etrailer’s copy of BAK’s specs lists a 400 lb evenly distributed rating, drain tubes and a 5-year warranty. The F-150 listing has 763 ratings averaging 4.2, and BAK says the install takes one person under 30 minutes.

The downsides: stood-up panels block the rear window, security depends on locking your tailgate, and a rack needs the MX4 TS version or a compatible rail rack. For the 6.5 ft box, the matching part is 448337 at about $1,271. [Check the MX4 price](https://www.amazon.com/dp/B08L44X6NZ?tag=truckcoverguide.com-20).

## Best value hard cover: Gator EFX

At about $549, the [Gator EFX](https://truckcoverguide.com/tonneau-covers/gator-efx/) (part GC24029) gives you aluminum panels, a 300 lb rating and a single cable pull to open, for less than half the MX4. With 1,244 ratings at 4.3 on the F-150 listing, it’s also well proven. Folded, the panels sit over the front third of the box, leaving about 45 in of a 67 in floor open for tall cargo, and the F-150 listing shows only a 2-year warranty. If you rarely carry tall loads, it’s the best hard cover for the money. [Check the EFX price](https://www.amazon.com/dp/B08L71GBX7?tag=truckcoverguide.com-20). The [Rough Country Hard Low Profile Tri-Fold](https://truckcoverguide.com/tonneau-covers/rough-country-hard-tri-fold/) (part 47221550B, about $700) is the alternative with a 5-year warranty, but a lower 200 lb rating.

## Best budget: Gator soft roll-up

Gator’s [soft roll-up](https://truckcoverguide.com/tonneau-covers/gator-etx-roll-up/) for the 2021–2026 F-150 5’7” bed costs about $220 and has 5,079 ratings averaging 4.6, the largest record of any roll-up we track. It clamps on without drilling, rolls to the cab for full access and carries a limited lifetime warranty. It’s vinyl with hook-and-loop sides, so it’s only as secure as your tailgate lock, and soft roll-ups generally let some water in: Car and Driver found water inside the bed after testing a TruXedo TruXport. An 8 ft version is about $272. [Check the price](https://www.amazon.com/dp/B08WCHHYPB?tag=truckcoverguide.com-20).

## Best hard roll-up: BAK Revolver X4s

The [Revolver X4s](https://truckcoverguide.com/tonneau-covers/bak-revolver-x4s/) (part 80339, about $1,500) rolls aluminum slats under 70-grade vinyl into a drum at the cab. It has a 400 lb rating, a 5-year warranty and BAK’s slash-resistance claim, and the floor stays clear because there’s no canister. Car and Driver installed one on a Ford Maverick and found it close to weatherproof, but the install took about 1.5 hours with fitment adjustment, and the rolled drum hurt rear visibility on the Maverick’s short bed. On the F-150’s larger cab and 5.5 ft box, the drum is proportionally less intrusive. The 6.5 ft version (80337) is about $1,580. [Check the X4s price](https://www.amazon.com/dp/B08WJSTCHZ?tag=truckcoverguide.com-20), or compare it in [BAKFlip MX4 vs Revolver X4s](https://truckcoverguide.com/posts/bakflip-mx4-vs-revolver-x4s/).

## Most secure: RetraxPRO MX

The [RetraxPRO MX](https://truckcoverguide.com/tonneau-covers/retraxpro-mx/) (part 80378, about $1,917 for the 5.5 ft box, $2,250 for the 6.5 ft) has aluminum slats rated for 500 lb and a key lock that holds closed, part-open or open, independent of the tailgate. Retrax backs it with a limited lifetime warranty. The canister takes roughly the first foot of the bed (etrailer lists 13-1/2 in deep by 12 in tall), and the drain tubes route through the bed’s drain holes. If you want keyed security for less, the [RetraxONE MX](https://truckcoverguide.com/tonneau-covers/retraxone-mx/) (part 60378, about $1,550) uses polycarbonate slats rated for 200 lb, and the [UnderCover Elite](https://truckcoverguide.com/tonneau-covers/undercover-elite/) one-piece (UC2208, about $1,360) is keyed and the best sealed type in Car and Driver’s tests, as long as you never haul tall cargo. [Check the PRO MX price](https://www.amazon.com/dp/B08L46PC1S?tag=truckcoverguide.com-20).

## Best budget tri-fold: Tyger T3

The [Tyger T3](https://truckcoverguide.com/tonneau-covers/tyger-t3/) (TG-BC3F1064, about $250) fits the 2021–2026 F-150 and the 2022–2026 Lightning with the 5.5 ft box. It uses 24 oz marine-grade vinyl on an aluminum frame, and its listing has 7,721 ratings averaging 4.7. Tyger quotes a 5-year warranty for US buyers from authorized dealers and says the crossbars fold up with the cover for full bed access. It sits on top of the rails, and over-the-rail bed liners need small cuts for the clamps. [Check the T3 price](https://www.amazon.com/dp/B0B94WC2F1?tag=truckcoverguide.com-20).

## Best for the full bed: UnderCover Ultra Flex

The [Ultra Flex](https://truckcoverguide.com/tonneau-covers/undercover-ultra-flex/) (UX22029, about $1,300) stands upright on dual prop rods without leaning on the cab, drives closed, partly open or fully open, and its dual-action seal lets you close the tailgate with the cover up or down. It has a carpeted underside and a 5-year warranty. The F-150 listing covers 2021–2025, so a 2026 owner should confirm fitment, and it doesn’t publish a load rating. The 6.5 ft version (UX22030) is about $1,250. [Check the Ultra Flex price](https://www.amazon.com/dp/B08L44F1TH?tag=truckcoverguide.com-20).

## Other F-150 options we checked

- **[TruXedo Lo Pro](https://truckcoverguide.com/tonneau-covers/truxedo-lo-pro/)** (about $520): the premium soft roll-up. Its F-150 5’7” listing covers 2015–2027, so it’s also the one pick here for a 2015–2020 truck.

- **[Extang Trifecta 2.0 Signature](https://truckcoverguide.com/tonneau-covers/extang-trifecta-2/)** (part 94702, about $540): a soft tri-fold that clamps on without rails and lifts off in minutes.

- **[Extang Solid Fold ALX](https://truckcoverguide.com/tonneau-covers/extang-solid-fold-alx/)** (part 88702, about $1,200): composite panels rated for 600 lb, two-thirds access.

- **[BAKFlip G2](https://truckcoverguide.com/tonneau-covers/bakflip-g2/)** (part 226339, about $1,132): the older BAK folder, worth it only when it’s well below the MX4.

- **[Roll-N-Lock M-Series XT](https://truckcoverguide.com/tonneau-covers/roll-n-lock-m-series/)** (131M-XT, about $2,000): a keyed retractable with a 7-1/4 in canister and T-slot rails for racks.

## F-150 accessories worth adding

A bed mat stops cargo sliding into the bulkhead under a closed cover, and a [Dee Zee tailgate assist](https://www.amazon.com/dp/B01AP2BNS0?tag=truckcoverguide.com-20) (listed for 2015-and-later F-150s) slows the tailgate as it drops. These are the bed and floor listings we checked:

| Item | Type | Fits | Buy |
| --- | --- | --- | --- |
| BedRug Classic bed liner (BRQ15SCK), charcoal grey**A full-coverage foam-backed carpet-style liner for the floor, walls and tailgate: kneeling-friendly, and it stops cargo sliding around under a cover. | Bed liner | 2015–2024 Ford F-150 5'7" (5.5 ft) bed · Any cover (Per the listing, the BRZSPRAYON install kit is required over a spray-in liner. If you run a clamp-on cover, make sure nothing sits on top of the bed rail where the clamps grip.) | [Check price](https://www.amazon.com/dp/B00R6LZUW4?tag=truckcoverguide.com-20) |
| Herculiner HCL1B8 roll-on bed liner kit, black, 1 gal**The cheap DIY route to a textured, sealed bed floor. A coated bed sits under any cover type without changing how clamps or rails fit. | Bed liner | Any cover (One-gallon kit; check the coverage on the listing against your bed size before you buy.) | [Check price](https://www.amazon.com/dp/B0002TDUW4?tag=truckcoverguide.com-20) |
| Husky Liners custom-fit rubberized bed mat (16008)**A rubberized mat with air-dry nibs underneath, so water that gets past a soft cover's seals can drain instead of sitting on the paint. | Bed mat | 2015–2026 Ford F-150 and 2022–2026 F-150 Lightning, 5'7" bed · Any cover (Per the listing, it will not fit over a drop-in bed liner.) | [Check price](https://www.amazon.com/dp/B084J67MZR?tag=truckcoverguide.com-20) |
| Rough Country heavy-duty rubber bed mat (RCM671)**A cheaper rubber mat that protects the floor and keeps cargo from sliding into the tailgate. | Bed mat | 2015–2027 Ford F-150, Lightning and Raptor, 5'7" (67 in) bed · Any cover | [Check price](https://www.amazon.com/dp/B0985NPF7M?tag=truckcoverguide.com-20) |
| Husky Liners X-act Contour floor liners, front & 2nd row (53468)**A slightly cheaper three-piece cab liner set with raised edges that hold spills. | Floor liners | 2021–2027 Ford F-150 and 2022–2025 Lightning SuperCrew with fold-flat storage · Any cover (For SuperCrew cabs with fold-flat underseat storage only, per the listing.) | [Check price](https://www.amazon.com/dp/B094QV23J9?tag=truckcoverguide.com-20) |
| WeatherTech FloorLiners, 1st & 2nd row, black (44697-1-6)**Laser-measured, US-made cab liners with channels that hold mud and snowmelt. | Floor liners | 2021–2026 Ford F-150 / Raptor and 2022–2023 Lightning SuperCrew · Any cover (Per the listing: 1st-row bucket seats with the fold-flat rear storage box. Other seat and storage layouts use different part numbers.) | [Check price](https://www.amazon.com/dp/B0999SP5VC?tag=truckcoverguide.com-20) |

If you plan a bed rack or rooftop tent, check compatibility before you buy the cover; see [tonneau covers with a bed rack](https://truckcoverguide.com/posts/tonneau-cover-with-bed-rack/).

## How to choose for your F-150

- **Daily driver, groceries and gym bags:** Gator soft roll-up or Tyger T3.

- **Tools or gear left in the bed, budget matters:** Gator EFX, plus a locked tailgate.

- **You want one cover for everything:** BAKFlip MX4.

- **You open the bed many times a day:** RetraxPRO MX.

- **Tall loads often:** MX4, Ultra Flex or the Revolver X4s, all of which open the full bed while driving.

Not sure which type fits how you use the bed? The [cover matcher](https://truckcoverguide.com/tools/cover-matcher/) ranks them for you, and the [bed access calculator](https://truckcoverguide.com/tools/bed-access-calculator/#truck=ford-f150-2021&bed=supercrew-5.5) shows what each type leaves usable on the 5.5 ft box. For every type and truck, see the [best tonneau covers of 2026](https://truckcoverguide.com/posts/best-tonneau-covers-2026/).

## Don't guess. Calculate.

- [📏 Bed Size Finder](https://truckcoverguide.com/tools/bed-size-finder/): what bed length your truck has
- [🎯 Cover Matcher](https://truckcoverguide.com/tools/cover-matcher/): which cover type suits you
- [📐 Bed Access Calculator](https://truckcoverguide.com/tools/bed-access-calculator/): usable bed with the cover open
- [📊 Compare every cover](https://truckcoverguide.com/tonneau-covers/): sortable spec table

## Frequently asked questions

### What size tonneau cover do I need for an F-150?
It depends on the box. Ford lists the 2021–2026 F-150 boxes at 67.1 in (5.5 ft), 78.9 in (6.5 ft) and 97.6 in (8 ft) inside length at the floor. SuperCrews usually have the 5.5 or 6.5 ft box. Cover listings often call the 5.5 ft box 5'7" and the 6.5 ft box 6'7". Our bed size finder shows yours by cab and model year.

### Do 2015–2020 F-150 tonneau covers fit a 2021 F-150?
Usually not. Ford's spec sheets give the same box lengths for both generations, but cover makers sell separate part numbers because rails and tailgates changed. Some listings, such as the TruXedo Lo Pro for the 5'7" bed, cover 2015–2027, so check the years on the listing.

### Will a tonneau cover fit an F-150 Lightning or Raptor?
Many 2021+ F-150 listings say so: the BAKFlip MX4, Revolver X4s, Gator EFX, Gator roll-up and RetraxPRO MX listings we checked all include the Lightning, and most include the Raptor. Confirm on the listing, since some cover makers sell separate Lightning listings.

### What is the most secure tonneau cover for an F-150?
A keyed cover, because it stays locked even when the tailgate is open. On the F-150 5.5 ft bed that means the RetraxPRO MX (about $1,917), RetraxONE MX (about $1,550), Roll-N-Lock M-Series XT (about $2,000) or the UnderCover Elite one-piece (about $1,360).

## Sources

- [Ford: 2024 F-150 technical specifications (PDF)](https://fromtheroad.ford.com/content/dam/fordmediasite/us/en/library/2024/specs/2024-Ford-F-150-Technical-Specs.pdf) · checked 2026-11-12 — Inside length at the floor: 67.1 in for the 5.5-ft box and 78.9 in for the 6.5-ft box.
- [Ford: 2021 F-150 technical specifications (PDF)](https://www.fromtheroad.ford.com/content/dam/fordmediasite/us/en/library/2021/specs/2021-F-150-Technical-Specs.pdf) · checked 2026-11-12 — Lists the 8.0-ft box at 97.6 in inside length at the floor.
- [Amazon: BAKFlip MX4 for 2021–2027 Ford F-150 5'7" bed (448339)](https://www.amazon.com/dp/B08L44X6NZ?tag=truckcoverguide.com-20) · checked 2026-11-12 — $1,199.99; fits the F-150 including Raptor and Lightning with the 5'7" (67.1") bed.
- [Amazon: Gator EFX for 2021–2026 Ford F-150 5'7" bed (GC24029)](https://www.amazon.com/dp/B08L71GBX7?tag=truckcoverguide.com-20) · checked 2026-11-12 — $549 with 1,244 ratings averaging 4.3; 300 lb load rating and a 2-year warranty per the listing.
- [Car and Driver: The Best Tonneau Covers of 2026, Tested](https://www.caranddriver.com/car-accessories/best-tonneau-covers-tested/) · checked 2026-11-12 — Tested the UnderCover SE one-piece on a 2021 F-150 XLT and found it almost entirely weatherproof under a pressure washer.

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Our #1 pick
 Best overall for the F-150: part 448339 for the 5.5 ft bed, about $1,200 ![BAKFlip MX4 Hard Folding Tonneau Cover](https://truckcoverguide.com/_astro/bakflip-mx4.CoOqV3JL_ZwWQMx.webp)

### [BAKFlip MX4 Hard Folding Tonneau Cover](https://truckcoverguide.com/tonneau-covers/bakflip-mx4/)
 8.2

- Hard folding
- Aluminum panels
- 100% bed access
Most truck owners who want a lockable hard cover that still opens the whole bed and has the longest owner track record of any hard folder.
   $$$$ Premium Price tier: Premium F-150 5.5 ft listing on Amazon
[Check price on Amazon](https://www.amazon.com/dp/B08L44X6NZ?tag=truckcoverguide.com-20)[Read the full review](https://truckcoverguide.com/tonneau-covers/bakflip-mx4/)

[📏 Which bed do you have? Make, model, year and cab in; bed length out, from the maker's spec sheet.](https://truckcoverguide.com/tools/bed-size-finder/)[🎯 Roll-up, fold or retractable? Match a cover type to your security, access and budget in 30 seconds.](https://truckcoverguide.com/tools/cover-matcher/)

## Keep reading
[Top picks
### The 8 Best Tonneau Covers of 2026: Ranked by Type, Truck and Budget
The best tonneau covers of 2026, ranked: BAKFlip MX4, Gator EFX, Gator roll-up, BAK Revolver X4s, RetraxPRO MX and more, with fitment and price notes.
 Updated Nov 12, 2026](https://truckcoverguide.com/posts/best-tonneau-covers-2026/)[Fitment
### How to Measure Your Truck Bed for a Tonneau Cover (and Why Inches Lie)
How to measure a truck bed for a tonneau cover: where to measure, how truck makers measure, nominal sizes vs real inches, and the options that change the part.
 Updated Nov 12, 2026](https://truckcoverguide.com/posts/how-to-measure-truck-bed-for-tonneau-cover/)[Head-to-head
### BAKFlip MX4 vs BAK Revolver X4s: Hard Fold or Hard Roll-Up?
BAKFlip MX4 vs BAK Revolver X4s: hard folding vs hard roll-up compared on access, security, sealing, install, racks and verified prices for the same trucks.
 Updated Nov 12, 2026](https://truckcoverguide.com/posts/bakflip-mx4-vs-revolver-x4s/)

 Best overall for the F-150: part 448339 for the 5.5 ft bed, about $1,200 BAKFlip MX4 $$$$ Premium Price tier: Premium
[Check price](https://www.amazon.com/dp/B08L44X6NZ?tag=truckcoverguide.com-20)