● Tonneau Covers · Review

BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover, Fits 2015-2020 Ford F-150 5'7" Bed

Its case rests on highest weight rating of any folding cover in this roundup at 500 lbs distributed and panels latch automatically as you close each section, no separate locking step.

✎ PickHonest Research Desk▦ Updated October 15, 2026◷ 3 min read

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BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover, Fits 2015-2020 Ford F-150 5'7" Bed
Best overall

BAK BAKFlip MX4 Hard Folding Truck Bed Tonneau Cover, Fits 2015-2020 Ford F-150 5'7" Bed

BAK Industries

Its case rests on highest weight rating of any folding cover in this roundup at 500 lbs distributed and panels latch automatically as you close each section, no separate locking step.

  • Hard folding tri-panel aluminum design
  • 500 lb distributed weight rating
  • Automatic panel latching as the cover closes
  • No-drill clamp-on stake pocket mount
  • 5-year warranty, tested -40°F to 180°F
  • Matte black finish matches factory bed rail caps

Pros

  • Highest weight rating of any folding cover in this roundup at 500 lbs distributed
  • Panels latch automatically as you close each section, no separate locking step
  • 6,800 ratings at 4.7 stars is the strongest review volume-to-score combination here
  • No-drill stake pocket install avoids any warranty risk questions
  • 5-year warranty range (-40°F to 180°F) covers real climate extremes, not just a marketing number

Cons

  • 90-plus lb panel assembly still needs two people to align rails during install
  • Folded stack near the cab reduces clearance for tall cab-mounted accessories
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