Size in Tonneau Covers: What It Is and Is It Worth It?

Tonneau Cover Size Explained

The size explained for tonneau covers is critical because a perfect fit depends on exact bed dimensions. You cannot rely on truck model names alone. Manufacturers label covers with specific bed lengths to ensure proper installation and operation. Common labels include 5 ft Bed, 5.5 ft Bed, 5.8 ft, 6 ft, 6 ft 7 in, and 8 ft. These numbers refer to the internal cargo space length, not the total vehicle length. Some listings also specify Cab type, such as Crew Cab, which helps you narrow down the correct model for your specific truck configuration.

Measuring your bed is the most reliable way to verify compatibility. Use a tape measure from the bulkhead, which is the wall behind the cab, to the front edge of the tailgate. Do not measure to the bottom of the tailgate or include the tailgate itself. The cover must sit flush with the bed rails. If your measurement falls between two standard sizes, you may need a custom fit or an adjustable model. Most hard and soft covers are designed for standard lengths like 5.5 ft or 6.5 ft. Longer beds, such as 8 ft, require significantly larger covers.

Why does this matter? A cover that is too small will not cover the entire bed, leaving cargo exposed. A cover that is too large will hang over the sides or interfere with the tailgate latch. This can cause damage to the cover or the truck. It can also prevent the tailgate from closing securely. Always double-check the listed size against your actual bed measurement. Incorrect sizing leads to installation failures and poor performance. Ensure the listed size matches your bed length precisely before purchasing any tonneau cover accessory.

Common Tonneau Cover Sizes

5' Bed

This size targets trucks with a five-foot bed length, typically found in compact or mid-size pickups. The RealTruck BAKFlip G2 Hard Folding cover serves as a primary example for this category. It features a glossy finish and measures 68 inches in length. The hard quad-fold structure provides enhanced security compared to soft vinyl options. This cover is designed for Toyota Tacoma owners who need full bed access without compromising on durability. The rigid panels lock securely, protecting cargo from weather and theft. You should verify your exact bed measurement before purchasing, as five-foot beds are less common in full-size trucks. This option suits those prioritizing security and a low profile over maximum cargo flexibility.

5.5ft Bed

This category covers trucks with a five-and-a-half-foot bed. While no specific product in the current list is designated for this exact dimension, it remains a standard size for many mid-size trucks. If you own a truck with this bed length, you must find a cover explicitly labeled for 5.5ft. Using a cover meant for a 5ft or 6ft bed will result in improper fitment. The cover may not seal correctly against the bed rails, allowing water and dust to enter. It might also obstruct the tailgate or interfere with the bed liner. Always check the manufacturer's compatibility chart. Do not assume interchangeability between similar bed sizes. Precision in measurement ensures the cover operates smoothly and provides the advertised weather protection and security features.

5.8FT

This size is specific to certain Fleetside beds, notably on Chevrolet Silverado and GMC Sierra trucks. The MOSTPLUS Soft Roll-Up and KUIPERAUTO Soft Tri-Fold covers are examples designed for this dimension. Both options utilize vinyl materials for basic weather protection. The MOSTPLUS model offers a no-drill installation, appealing to owners who want a simple setup. The KUIPERAUTO variant provides a tri-fold structure for better access than a full roll-up. These covers are best for drivers who need reliable protection without the bulk or cost of hard covers. The vinyl construction is lightweight and flexible. However, they offer less security than hard folding or retractable systems. You should choose this size only if your truck bed matches this exact measurement to ensure proper rail alignment.

6' 7" Bed

This dimension applies to standard bed lengths on many full-size trucks, such as the Ford F-150. The Gator ETX Soft Roll-Up and RealTruck BAK MX4 TS Hard Folding covers are built for this size. The Gator ETX weighs 27 pounds and measures 68 inches long, offering a soft roll-up design for easy access. The BAK MX4 TS is a heavier, 71-pound hard folding cover with integrated rack rails. It measures 82.4 inches in length. The choice between these depends on your priority: maximum accessibility or added utility. The soft cover is lighter and easier to operate manually. The hard cover provides superior security and allows for rack mounting. Both ensure a flush fit for your specific bed length, preventing interference with the tailgate.

8Ft

An eight-foot bed is the longest standard option for many pickup trucks, offering maximum cargo volume. No specific cover in the current list is designated for this size. If you have an eight-foot bed, you must search for covers explicitly labeled for 8ft. Using a cover for a 6ft or 7ft bed will leave significant portions of the bed exposed. The cover will not secure properly to the side rails, compromising weather protection and security. Installation will be difficult, and the cover may sag or fail to latch. Always verify your bed length before ordering. Manufacturers produce specific long-bed covers to accommodate the extended distance. Ensure the cover material and structure can span the full length without excessive flexing or damage.

Is Size Worth Your Attention

Who needs it

You must prioritize exact bed measurements if you own a compact or mid-size pickup with a five-foot or five-and-a-half-foot cargo area. These shorter beds require precise fitment to ensure the cover seals correctly and operates without interference. Similarly, if you drive a full-size truck with an eight-foot bed, the sheer length demands a cover engineered for that specific span. The RealTruck BAKFlip G2 Hard Folding cover illustrates why this matters for longer configurations. Its glossy finish and 68-inch width are just part of the equation. The length must match your bed exactly to prevent gaps that let in water or debris. If you value secure storage and a clean look, ignoring size leads to poor performance. You need the right dimensions to maintain the structural integrity of the cover and the weatherproofing of your truck bed. Proper sizing ensures the latches engage fully and the panels fold or roll smoothly every time.

Who can skip it

You can largely ignore specific tonneau cover size labels if you are shopping for a replacement that matches your current setup. If your existing cover fits well, you already know the correct dimensions for your vehicle. In this case, focus on material durability, locking mechanisms, or ease of installation instead of re-verifying bed length. However, do not skip this step if you have recently modified your truck bed or installed a liner that changes the internal dimensions. Even small changes can affect how a new cover sits. For most buyers, confirming the bed length is a one-time check. Once verified, you can move on to evaluating other features like hard folding versus soft rolling designs. Prioritize the mechanism that best suits your daily needs. Whether you need quick access or maximum security, the fit is assumed if you are replacing a known good unit. Spend your time comparing build quality and warranty terms rather than measuring again.

Tonneau Cover Size Glossary

Bed Length

The interior measurement from the bulkhead to the tailgate. You must match this number exactly to ensure the cover aligns with mounting points and seals correctly.

Cab Size

The classification of the truck cabin, such as Regular, Extended, or Crew. This determines the overall truck length and helps identify the correct bed dimensions for your vehicle.

Bed Type

The specific shape and configuration of the cargo area. Factors like wheel well placement and rail height affect which cover styles fit properly without interference.

Compatible Truck

The list of specific vehicle models the cover is engineered to fit. You must verify this list against your exact year, make, and model to avoid fitment issues.

Cover Style

The mechanical design, such as folding, rolling, or hinging. The style dictates how the cover opens and closes, impacting bed access and cargo capacity.

Profile

The height of the cover when closed relative to the bed rails. A low profile often improves aerodynamics, while a high profile may offer more clearance for tall items.

Material

The substance used to construct the cover panels, such as aluminum, vinyl, or fiberglass. Material choice determines weight, durability, and how well the cover resists weather and impacts.

Structure

The internal framework supporting the cover panels. A rigid structure maintains shape under load, while a flexible structure allows the cover to roll or fold compactly.

Quick picks

Our 6 picks

1

Gator ETX Soft Roll-Up for Ford F-150 6' 7" Bed

Best for: Ford F-150 owners needing full bed access

Size

6' 7" Bed (what this guide is about)

Compatible Truck

Ford F-150

Bed Size

6' 7" Bed

Cover Style

Roll-Up

Structure

Soft

Width

6-Inch

View on Amazon: Gator ETX Soft Roll-Up for Ford F-150 6' 7" Bed Affiliate link

The Gator ETX is a soft roll-up tonneau cover designed for the 6' 7" bed of the Ford F-150. It measures 68 inches in length and weighs 27 pounds. The cover features a patented stay-closed grip and a spring-loaded tension system for a tight fit. It includes adjustable cargo keepers to secure gear. This model sits flush to the bed rails for a low-profile look.

Pros

• Soft roll-up style for full bed access
• Patented multi-tiered hook-and-loop closure
• Spring-loaded tension system prevents edge curling
• Includes adjustable cargo keepers
• Low-profile design sits flush to rails

Cons

• Soft material offers less security than hard covers
• Manual operation requires physical effort to roll
• Weighs 27 pounds, adding bulk to the bed

Good fit if

• You need full bed access for large items
• You own a 2004-2014 Ford F-150 with a 6' 7" bed
• You prefer a low-profile aesthetic over hard folding panels

Skip if

• You require remote-controlled or automatic operation
• You need maximum theft protection for high-value cargo
• Your truck has a different bed size or year range

Verdict: The Gator ETX Soft Roll-Up 6' 7" Bed is a practical choice for F-150 owners who prioritize bed accessibility and a secure, flush fit. It suits drivers who value easy access over the enhanced security of hard folding or retractable systems.

2

MOSTPLUS 5.8 ft Roll-Up Soft Vinyl Tonneau Cover

Best for: 5.8 ft Fleetside beds needing basic weather protection

Size

5.8FT (what this guide is about)

Bed Size

5.8 ft

Cover Style

Roll-Up

Material

Vinyl Tarp and Aluminum Frame

Installation

No Drilling

Waterproof

Waterproof & UV resistant

View on Amazon: MOSTPLUS 5.8 ft Roll-Up Soft Vinyl Tonneau Cover Affiliate link

This MOSTPLUS cover is designed for 5.8 ft Fleetside beds on 2014-2019 Silverado and Sierra trucks. It uses a vinyl tarp over an aluminum frame for a soft roll-up style. The manual operation requires no drilling. It offers waterproof and UV resistance to protect your gear. You get a secure fit with side rails and clamps. It includes built-in LED lighting for convenience.

Pros

• Vinyl tarp and aluminum frame construction
• Manual roll-up operation
• No drilling installation required
• Waterproof and UV resistant material
• Built-in LED light included

Cons

• Soft vinyl material offers less security than hard covers
• Manual operation lacks remote or motorized convenience
• Limited to Fleetside bed types only

Good fit if

• You need a budget-friendly cover for a 5.8 ft Fleetside bed
• You prefer a simple manual roll-up mechanism
• You want UV and water protection for your truck bed

Skip if

• You drive a 2019+ non-Classic Silverado or Sierra
• You have a StepSide or other non-Fleetside bed
• You require a hard folding or locking security system

Verdict: MOSTPLUS 5.8 ft Soft Roll-Up Cover fits owners of 5.8 ft Fleetside beds who want easy, no-drill installation and basic weather protection without the bulk of a hard cover.

3

RealTruck BAKFlip G2 Hard Folding 5' Bed

Best for: Toyota Tacoma owners needing secure full bed access

Size

5' Bed (what this guide is about)

Compatible Truck

2016-2023 Toyota Tacoma

Bed Size

5' 1"

Cover Style

Hard Folding

Material

Aluminum

Lock Type

Automatic Slam Latches

View on Amazon: RealTruck BAKFlip G2 Hard Folding 5' Bed Affiliate link

This hard folding cover fits 2016-2023 Toyota Tacoma models with a 5' 1" bed. It uses aircraft-grade aluminum panels for strength without adding excessive weight. The design allows full bed access by folding to the cab. Automatic slam latches secure each panel to the patented rail system. Precision-fit rubber seals help keep water and debris out. It is built for drivers who need durable, secure storage with a sleek glossy finish.

Pros

• Aircraft-grade aluminum construction reduces weight while increasing strength.
• Automatic slam latches lock every panel securely.
• Folds to the cab for 100% full bed access.
• Patented rail and clamp system ensures a tight fit.

Cons

• Hard folding style is bulkier than soft roll-up options.
• Limited to 5' 1" bed size compatibility.
• No remote control or electronic operation listed.

Good fit if

• You own a 2016-2023 Toyota Tacoma with a 5' 1" bed.
• You need full bed access while keeping gear secure.
• You prefer a hard cover for added durability.

Skip if

• You drive a truck with a 5' 5" or 6' 7" bed.
• You want a soft roll-up cover for minimal bulk.
• You require electronic remote operation for opening.

Verdict: RealTruck BAKFlip G2 5' Bed is a durable hard folding solution for Tacoma owners who prioritize security and full bed access over a low-profile soft cover.

4

Tutel Hard Shell Tri-Fold for 5ft Tacoma

Best for: Toyota Tacoma owners needing hard shell protection

Size

5ft Bed (what this guide is about)

Compatible Truck

2016-2026 Toyota Tacoma

Bed Size

5' 1" (60.5")

Cover Style

Hard Folding

Material

Aluminum Frame, EnduraShield Panels

Lock Type

Clamps Lock in Place

View on Amazon: Tutel Hard Shell Tri-Fold for 5ft Tacoma Affiliate link

The Tutel Hard Shell folding cover is built for the 5' 1" bed of 2016-2026 Toyota Tacoma models. It uses an aluminum frame with EnduraShield polymer panels that resist dents and scratches. The clamps lock directly to the bed flange without drilling. You can remove the entire cover in seconds for full access. This low-profile design keeps your gear secure while maintaining a sleek look on your truck.

Pros

• Aluminum frame with EnduraShield polymer panels
• No drilling required for installation
• Removable in seconds without tools
• Clamps lock securely to bed flange

Cons

• Limited to 5' 1" bed size
• Compatible only with Toyota Tacoma
• No mention of keyless entry integration

Good fit if

• You own a 2016-2026 Toyota Tacoma
• You need full bed access quickly
• You want a hard, durable cover

Skip if

• You have a 5' or 5.5' bed
• You drive a Ford or Chevy
• You prefer a soft roll-up style

Verdict: The Tutel Hard Shell 5' 1" Bed Cover is a solid choice for Tacoma owners who need tool-free removal and durable materials. It fits your specific truck bed perfectly but offers no flexibility for other vehicle types.

5

RealTruck BAK MX4 TS Hard Folding 6' 6"

Best for: Ford F-150 owners needing rack integration

Size

6' 7" Bed (what this guide is about)

Compatible Truck

2021-2025 Ford F-150

Bed Size

6' 7" Bed (78.9")

Cover Style

Hard Folding

Material

Aluminum

Lock Type

Auto-latch

View on Amazon: RealTruck BAK MX4 TS Hard Folding 6' 6" Affiliate link

The RealTruck BAK MX4 TS is a hard folding tonneau cover designed for the 2021-2025 Ford F-150 with a 6' 7" bed. It features premium-grade aluminum panels with a Multi-Shield protective coating for increased durability. The integrated T-slot rails allow you to mount racks and cargo holders directly to the cover. Weighing 71 pounds, it offers a secure, matte black finish that complements your truck while providing easy access to the bed.

Pros

• Integrated T-slot rails for rack compatibility
• Premium-grade aluminum construction with Multi-Shield coating
• Quad-fold design for full bed access
• Fits 2021-2025 Ford F-150 6' 7" bed

Cons

• Heavier at 71 pounds than soft vinyl alternatives
• Limited to specific Ford F-150 model years
• Matte black finish only available in this variation

Good fit if

• You need to mount racks or cargo holders to your tonneau cover
• You own a 2021-2025 Ford F-150 with a 6' 7" bed
• You prefer the security and durability of hard folding panels

Skip if

• You drive a truck with a 5' 7" or 8' 2" bed
• You want a lightweight soft roll-up cover for easy handling
• You need a cover compatible with non-Ford trucks

Verdict: RealTruck BAK MX4 TS 6' 7" Rack-Ready is ideal for Ford F-150 owners who require a sturdy, rack-ready solution for hauling gear. Its aluminum build and integrated rails make it a functional choice for utility-focused drivers.

6

KUIPERAUTO Soft Tri-Fold 5.8 ft Cover

Best for: standard 5.8ft Fleetside beds

Size

5.8FT (what this guide is about)

Bed Size

5.8 ft

Cover Style

Soft Tri-Fold

Material

Vinyl, Aluminum

Waterproof

Waterproof

Bed Type

Fleetside

View on Amazon: KUIPERAUTO Soft Tri-Fold 5.8 ft Cover Affiliate link

This soft tri-fold tonneau cover fits 5.8-foot Fleetside beds on 2019-2026 Chevy Silverado and GMC Sierra trucks. It uses a powder-coated aluminum frame with double-sided tear-resistant vinyl. The design offers waterproof and UV protection for your cargo. You get a 6-inch wide cover that folds in thirds. Installation requires no drilling for most models, though some bedliners may need latch holders. It excludes Classic models and CarbonPro beds.

Pros

• Soft tri-fold design with aluminum frame
• Double-sided tear-resistant vinyl material
• Waterproof and UV resistant protection
• No-drill installation with integrated clips
• Fits 5.8ft Fleetside beds

Cons

• Does not fit Multi-Flex tailgates
• Incompatible with CarbonPro beds
• Excludes 2019 Classic Silverado models

Good fit if

• You have a 5.8ft Fleetside bed
• You want a soft tri-fold cover
• You drive a 2019-2026 Silverado or Sierra

Skip if

• You have a CarbonPro bed
• You have a Multi-Flex tailgate
• You own a 2019 Classic model

Verdict: KUIPERAUTO 5.8ft Tri-Fold Vinyl Cover is a durable option for owners of standard 5.8ft Fleetside beds on 2019-2026 Silverado and Sierra trucks who need reliable weather protection without drilling.

Specifications side by side

Frequently asked questions

See also

• size explained
• size explained