Ram 1500 bed measurements depend on the generation and configuration, so the truck’s model year matters. For the current Ram 1500, the two main bed choices are a 5-foot-7-inch box and a 6-foot-4-inch box.
The current Ram 1500 uses 5’7″ and 6’4″ boxes. Published cargo lengths are about 67.4 and 76.3 inches, with about 66.4 inches of maximum width and roughly 51 inches between the wheel wells. RamBox and older generations require separate fitment checks.
- Ram 1500 Bed Measurements at a Glance
- Ram 1500 5’7″ Bed Dimensions
- Ram 1500 6’4″ Bed Dimensions
- Why Ram 1500 Model Year Matters
- Current Ram 1500 Bed Width and Wheel-Well Clearance
- Ram 1500 Bed Depth
- Ram 1500 Bed Measurements by Generation
- Ram 1500 Cab and Bed Combinations
- Ram 1500 Bed Measurements for Tonneau Covers
- Ram 1500 Bed Measurements for Other Accessories
- Common Ram 1500 Measurement Mistakes
- Frequently Asked Questions
- Bottom Line
Current factory specifications put the floor lengths at about 67.4 inches and 76.3 inches, respectively. Both have a wall-to-wall bed width of about 66.4 inches, while the current box is about 51 inches between the wheel housings. Depth is approximately 21.4 inches for the 5’7″ box and 21.5 inches for the 6’4″ box.
Ram 1500 Bed Measurements at a Glance
| Ram 1500 box | Nominal size | Floor length | Bed width | Between wheel wells | Depth |
|---|---|---|---|---|---|
| Short box | 5’7″ | 67.4 in | 66.4 in | 51 in | 21.4 in |
| Standard box | 6’4″ | 76.3 in | 66.4 in | 51 in | 21.5 in |
These figures describe the current fifth-generation Ram 1500 configuration. Older Ram 1500 and Ram 1500 Classic trucks can have different box construction and dimensions.
Ram 1500 5’7″ Bed Dimensions
The current 5’7″ Ram 1500 box measures about 67.4 inches along the floor. The wall-to-wall width is about 66.4 inches, and the space between the wheel housings is about 51 inches. Bed depth is approximately 21.4 inches.
The 5’7″ box is commonly associated with Crew Cab configurations. It is the shorter option of the two current Ram 1500 beds and reduces overall truck length compared with a longer box.
Ram 1500 6’4″ Bed Dimensions
The current 6’4″ box measures about 76.3 inches along the floor, with the same approximate 66.4-inch wall-to-wall width and 51-inch wheel-well clearance. Depth is about 21.5 inches.
The extra 8.9 inches of floor length can make a noticeable difference for longer cargo while retaining a relatively manageable overall vehicle length.
Why Ram 1500 Model Year Matters
The Ram 1500 is especially important to identify by generation because different versions have been sold alongside one another.
The current fifth-generation Ram 1500 uses 5’7″ and 6’4″ boxes. The older Ram 1500 platform also used 5’7″, 6’4″ and, on some configurations, an 8-foot box. The Ram 1500 Classic continued to use the older design while the newer Ram 1500 was on sale.
That means a product listing that simply says “Ram 1500” is not enough to establish fitment.
Current Ram 1500 Bed Width and Wheel-Well Clearance
The wall-to-wall measurement of the current box is about 66.4 inches. But the floor narrows to roughly 51 inches between the wheel wells.
That 51-inch measurement is more useful when evaluating flat cargo. It gives more than the 48 inches needed for the width of a standard 4×8 sheet, but length remains a separate constraint.
RamBox-equipped trucks need additional attention. The storage compartments integrated into the bed sides change the usable box arrangement and can require accessories designed specifically for RamBox applications.
Ram 1500 Bed Depth
Current Ram 1500 bed depth is approximately 21.4 inches on the 5’7″ box and 21.5 inches on the 6’4″ box.
Depth is useful when deciding how high cargo can sit below the bed rails and when comparing accessories that occupy vertical space.
Older Ram 1500 generations have different depth figures, so do not carry the current measurement over to an older truck without checking its specifications.
Ram 1500 Bed Measurements by Generation
| Generation / version | Common box lengths | Approx. floor lengths |
|---|---|---|
| Current Ram 1500 (2019+) | 5’7″, 6’4″ | 67.4″, 76.3″ |
| Ram 1500 Classic / older platform | 5’7″, 6’4″, 8′ on applicable versions | 67.4″, 76.3″, 98.3″ |
| Earlier Ram/Dodge Ram versions | Configuration-dependent | Verify exact year |
This table is deliberately broad. Older trucks have more configuration differences, and accessory fitment should be verified by exact year rather than inferred from the badge.
Ram 1500 Cab and Bed Combinations
Current Ram specifications list the 6’4″ box with Quad Cab and Crew Cab configurations, while the 5’7″ box is associated with Crew Cab configurations.
The older platform and Ram 1500 Classic have different combinations. If you are shopping for a used truck or used accessory, confirm the exact cab and bed before ordering.
Ram 1500 Bed Measurements for Tonneau Covers
For a tonneau cover, use the Ram’s model year, body generation, box length and equipment—not just “Ram 1500.”
Once you’ve confirmed your truck’s year, bed length, and RamBox configuration, explore our best Ram 1500 tonneau covers guide for compatible options to investigate.
Also check whether the truck has RamBox storage. A standard-bed cover and a RamBox-specific cover can require different mounting arrangements even when the floor length is unchanged.
Before ordering, verify:
- model year;
- Ram 1500 vs. Ram 1500 Classic;
- cab configuration;
- 5’7″ or 6’4″ box;
- RamBox or non-RamBox configuration;
- tailgate design;
- bed liner and other accessories; and
- the cover manufacturer’s exact fitment.
Ram 1500 Bed Measurements for Other Accessories
Bed mats and liners
Choose a product listed for the exact bed length and generation. A similar nominal length does not guarantee the same contours.
Toolboxes
Check whether the toolbox is designed for the rail spacing and whether it interferes with a tonneau cover or RamBox compartments.
Bed racks
Rack mounting systems can depend on rails, stake pockets or other truck-specific hardware. Bed length is only one fitment variable.
Bed slides and drawers
These products are normally sold for a particular bed length and generation. Measure the usable floor and confirm the product’s application.
Common Ram 1500 Measurement Mistakes
Confusing 5’7″ with an exact 67-inch measurement. The current floor measurement is about 67.4 inches.
Assuming every Ram 1500 uses the current box. Older generations and the Classic have different configurations.
Ignoring RamBox. Factory side storage can change accessory compatibility.
Using overall vehicle width as bed width. The cargo box has its own dimensions.
Buying a cover by length alone. Rail shape, generation, tailgate and factory equipment can matter just as much.
Frequently Asked Questions
How long is a Ram 1500 5’7″ bed?
The current 5’7″ box measures about 67.4 inches at the floor.
How long is a Ram 1500 6’4″ bed?
The current 6’4″ box measures about 76.3 inches at the floor.
How wide is a Ram 1500 bed?
The current box is about 66.4 inches wall-to-wall and about 51 inches between the wheel housings.
How deep is a Ram 1500 bed?
The current 5’7″ box is about 21.4 inches deep and the 6’4″ box about 21.5 inches.
Does RamBox change the bed size?
The nominal floor length can remain the same, but RamBox changes the side structure and usable mounting area. RamBox-specific accessory fitment is therefore important.
Is a Ram 1500 Classic bed the same as the current Ram 1500 bed?
No. They are different platforms and should not be assumed to have interchangeable accessories.
Bottom Line
The current Ram 1500 has two main box lengths: 67.4 inches for the 5’7″ bed and 76.3 inches for the 6’4″ bed. Both are about 66.4 inches wide wall-to-wall and 51 inches between the wheel housings.
Because Ram has sold multiple generations and the Ram 1500 Classic alongside the newer truck, always verify the exact model year, generation, cab, bed length and RamBox status before buying a fitted accessory.
