How wide is an F-150 bed between the wheel wells?

50.6 inches, per Ford's published specifications, and it is the same figure for the 5.5 ft, 6.5 ft and 8.0 ft beds. Measure yours with the bed liner in place — a drop-in liner costs you most of an inch each side.

How long is the F-150 5.5 ft bed at the floor?

67.1 inches. The 6.5 ft bed is 78.9 in and the 8.0 ft bed is 97.6 in, all measured at the floor. Cargo volumes are 52.8, 62.3 and 77.4 cu ft respectively.

How deep is an F-150 bed?

21.4 inches inside box height, per Ford's published figures, across all three bed lengths. That is the number that decides whether a load clears the rails and how much vertical space a drawer system's raised floor costs you.

What is the F-150's bed rail width?

UWS publishes the exterior bed rail width — outside to outside across the top of the rails — as about 65 inches. That is the figure crossover tool box fitment is built around, and it is not the same as the interior width.

Do all F-150 cab configurations have the same bed dimensions?

For a given bed length, yes — the cargo box figures above do not change with cab. What does change fitment is the model-year generation, the Pro tailgate option, factory bed steps and the electric variant's different bed hardware.

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Ford F-150 bed dimensions

Every published figure in one table, cited, plus the measurement you still have to take yourself.

By Mike M.Updated October 2026

DECKED Drawer System — Ford F-150 (2015-current) 5'6" bed — Ford F-150 bed dimensions — Featured here: the DECKED DECKED Drawer System — Ford F-150 (2015-current) 5'6" bed.

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How we know:Spec-verifiedWhat these mean

Ford F-150 published cargo box dimensions. Exterior rail width from UWS's bed width guide.
	5.5 ft bed	6.5 ft bed	8.0 ft bed
Length at floor	67.1 in	78.9 in	97.6 in
Width between wheelhouses	50.6 in	50.6 in	50.6 in
Inside box height	21.4 in	21.4 in	21.4 in
Cargo volume	52.8 cu ft	62.3 cu ft	77.4 cu ft
Exterior bed rail width	about 65 in	about 65 in	about 65 in

Those are the figures Ford publishes, and they are the ones to shop against. Three notes on using them.

Which number matters for which product

Exterior bed rail width (about 65 in). Decides the crossover tool box size class. Full-size boxes are built around this figure. See what size tool box fits an F-150.
Width between wheelhouses (50.6 in). Decides chests, drawer modules and bed slides — anything sitting on the floor between the wells. A 48 in slide fits with room for its rails.
Length at floor. Decides drawer system and slide length, and the length is exact rather than approximate. Order for your bed, not for your trim name.
Inside box height (21.4 in). Decides whether a load clears the rails, and how much vertical space a drawer system's raised floor costs you.

The measurement to take yourself

The published figures describe a bare bed. Yours probably is not one. Take the exterior bed rail width yourself, outside edge to outside edge across the top of the rails at the point nearest the cab, with a taut tape.

Keep the tape taut. A sagging tape over five and a half feet is easily an inch out, and an inch matters.
Measure nearest the cab. That is the widest exterior point of the bed and where the box ends will land.
Note what is on the rails. A bonded rail cap changes the surface the box lands on and the lip a clamp has to grip.
Measure the wheel-well width with the liner in. A drop-in liner costs you most of an inch each side, which can be the difference for a slide.

What changes within the F-150 range

The cargo box dimensions above are consistent across cab configurations for a given bed length. What does change, and does affect fitment:

Model-year generation. The 2015-2020 and 2021-onward trucks take different tonneau covers and some different liners even where the bed dimensions match.
Pro tailgate. The multi-function tailgate option excludes a number of liners and bed mats.
The electric variant. Different bed hardware — charge outlets, tie-down positions, drain locations — so mats and liners need to state compatibility.
Factory bed steps and bed-side storage. Both exclude specific parts; the exclusions are in the listing fine print.

The three picks above are the ones whose fitment is decided directly by the figures in this table: a drawer system cut for the 5'6" bed, a drop-in liner for the 5'7" bed, and a full-size crossover box for the 65-inch rail width.

Gear sized to these dimensions

DECKEDSpec-verified

DECKED Drawer System — Ford F-150 (2015-current) 5'6" bed

Best for: The best all-round work bed storage

Our score8.8/10

$1,699.99at Amazon

Price as of October 5, 2026. #ad

Two full-length weather-sealed drawers under a load-bearing deck. You keep the whole bed floor on top and gain two drawers you can reach from the tailgate without climbing in, which is the single biggest day-to-day change you can make to a work truck.

Who should skip it. It raises your bed floor by the height of the drawer module, so you lose vertical space and the ability to carry a full-height pallet. If you haul bulk more than tools, this is the wrong buy.

Build: 9.4
Capacity: 8.2
Install: 8.8
Day-to-day access: 9.8
Value: 7.0

What works

Drawers are reachable from the tailgate — no climbing into the bed
Deck surface stays usable for cargo on top
Weather-sealed drawers keep tools dry in an open bed
No-drill installation on the factory cleat system

What does not

The most expensive item in this category by a wide margin
Raises the bed floor and costs you vertical capacity
Very heavy — payload matters if you also tow
Sold per bed length; ordering the wrong one means a return freight bill

Published specifications

Fitment: Ford F-150 2015-current, 5'6" bed
Drawers: 2 full-length
Deck: Load-bearing, weather-sealed drawers
Install: No drilling — uses factory bed cleats
Published capacity: Not published

Figures from the Manufacturer listing.

Fits

Ford F-150, 2015 to current, 5'6" bed

Does not fit

Any other bed length — other lengths are separate listings
Trucks that regularly carry full-height pallets or bulk material
Mid-size trucks (a separate, smaller range exists)

Husky LinersSpec-verified

Husky Liners Freedom Bed Liner — F-150 5'7" (2015-2026)

Best for: A proper drop-in tub

Our score8.4/10

$405.82at Amazon

Price as of October 5, 2026. #ad

A five-piece drop-in that covers floor and sides. Drop-ins are unfashionable and they still make sense: the bed sheet metal never gets touched, and when the liner is destroyed you replace the liner instead of repainting the truck.

Who should skip it. Grit gets between a drop-in and the bed and sands the paint. If the truck is going to be sold on condition, a spray-in is the safer choice.

Protection: 8.8
Weather seal: 7.0
Install: 8.6
Durability: 8.6
Value: 8.0

What works

Sheet metal never contacts cargo
Replaceable when destroyed — the truck is not
Five pieces means it goes in without removing the bed

What does not

Grit between liner and bed abrades paint
Cargo slides on hard plastic
Drums audibly at speed when empty

Published specifications

Fitment: Ford F-150 2015-2026, 5'7" bed, no Pro Tailgate
Type: Drop-in bed liner, 5-piece
Coverage: Floor and sides
Published thickness: Not published

Figures from the Manufacturer listing.

Fits

Ford F-150, 2015-2026, 5'7" bed without the Pro Tailgate option

Does not fit

Trucks with the Pro Tailgate
Other bed lengths

UWSSpec-verified

UWS EC10473 69-inch Heavy-Wall Aluminum Crossover

Best for: The box you buy once

Our score8.6/10

$759.95at Amazon

Price as of October 5, 2026. #ad

Heavy-wall aluminum, a foam-filled RigidCore lid that does not flex when you sit on it, and a low profile that still clears most rear glass. This is the crossover to buy if you intend to keep the truck.

Who should skip it. Skip it on a 5'5" short bed. At 69 inches it will sit on the rails, but you lose a disproportionate share of a short bed and the money is better spent on a side-mount pair.

Build: 9.4
Weather seal: 8.8
Security: 8.6
Bed usability: 8.0
Value: 7.4

What works

Foam-filled lid does not oil-can under body weight
Low profile clears rear glass on most full-size crew cabs
Heavy-wall extrusion survives being used as a step
Gas struts are serviceable rather than sealed units

What does not

Among the most expensive aluminum crossovers on the shelf
69 in is a full-size length — not a mid-size answer
Matte black shows scuffs more than diamond plate

Published specifications

Length: 69 in
Profile: Low profile
Material: Heavy-wall aluminum
Lid: RigidCore foam-filled, single lid
Finish: Matte black
Published capacity: Not published

Figures from the Manufacturer listing.

Fits

Full-size beds — exterior rail width in the mid sixties (F-150 about 65 in, Silverado 1500 about 64 in, Ram 1500 about 66 in)
F-150, Silverado 1500, Ram 1500 and Sierra 1500 standard and long beds

Does not fit

Mid-size trucks — Tacoma, Colorado, Ranger, Frontier
Beds outside UWS's stated fitment range for this box
Trucks already running a hard folding tonneau without a notched panel

Questions people actually ask

How wide is an F-150 bed between the wheel wells?: 50.6 inches, per Ford's published specifications, and it is the same figure for the 5.5 ft, 6.5 ft and 8.0 ft beds. Measure yours with the bed liner in place — a drop-in liner costs you most of an inch each side.
How long is the F-150 5.5 ft bed at the floor?: 67.1 inches. The 6.5 ft bed is 78.9 in and the 8.0 ft bed is 97.6 in, all measured at the floor. Cargo volumes are 52.8, 62.3 and 77.4 cu ft respectively.
How deep is an F-150 bed?: 21.4 inches inside box height, per Ford's published figures, across all three bed lengths. That is the number that decides whether a load clears the rails and how much vertical space a drawer system's raised floor costs you.
What is the F-150's bed rail width?: UWS publishes the exterior bed rail width — outside to outside across the top of the rails — as about 65 inches. That is the figure crossover tool box fitment is built around, and it is not the same as the interior width.
Do all F-150 cab configurations have the same bed dimensions?: For a given bed length, yes — the cargo box figures above do not change with cab. What does change fitment is the model-year generation, the Pro tailgate option, factory bed steps and the electric variant's different bed hardware.

Sources

Ford F-150 accessories: what fits and what does not
Published F-150 bed dimensions, the tool box size that fits, and the gear that goes on without a fight across every category.
What size tool box fits an F-150?
The measurement, the size class it points to, and what changes on a 5.5 ft bed versus an 8 ft one.
Truck bed dimensions chart
Exterior rail width, wheel-well width, bed length, depth and volume for all four trucks, cited to the manufacturer.
How to measure a truck bed for a tool box
The four measurements in order, what each one decides, and why the box is longer than your bed is wide.
The best tool boxes for a Ford F-150
Full-size crossover and topsider boxes sized for the F-150, with the 5.5 ft bed's floor loss accounted for.

Last reviewed October 5, 2026. Think a figure here is wrong? Tell us at contact@toolboxandtruck.com and we will check it, fix it and date the correction — see our editorial policy.

Which number matters for which product

The measurement to take yourself

What changes within the F-150 range

Related products that use these numbers

Gear sized to these dimensions

DECKED Drawer System — Ford F-150 (2015-current) 5'6" bed

Husky Liners Freedom Bed Liner — F-150 5'7" (2015-2026)

UWS EC10473 69-inch Heavy-Wall Aluminum Crossover

Questions people actually ask

Sources