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What are the dimensions of a Dodge Ram truck bed?

Ram trucks offer multiple bed lengths depending on the model and cab configuration. The most common options are 5 ft 7 in (67 inches) and 6 ft 4 in (76 inches) for the Ram 1500, while heavy‑duty Ram models (2500/3500) can feature longer 8 ft (96 inches) beds in certain configurations. This article breaks down the typical dimensions you’ll encounter and what to check for your specific truck.


Ram 1500 bed dimensions


Key measurements for the light‑duty Ram 1500’s cargo bed help you estimate payload compatibility and cargo fit.


Common bed lengths and related measurements you should know for the Ram 1500.



  • Bed length options: 5 ft 7 in (67 inches) or 6 ft 4 in (76 inches).

  • Interior width between wheel wells: about 50 inches (127 cm).

  • Overall bed width: roughly 66–67 inches (168–170 cm).

  • Bed depth (floor to top edge): about 21–22 inches (53–56 cm).


These dimensions give you a practical sense of cargo capacity and fit for standard pickups; confirm exact figures for your specific build via the window sticker, Ram’s official spec sheet, or a dealer, since options vary by cab and bed configuration.


Ram Heavy-Duty (Ram 2500/3500) bed dimensions


For the heavy‑duty Ram 2500 and 3500 line, bed length options include the longer 8 ft bed alongside the 6 ft 4 in option, depending on cab configuration and trim. These trucks are built for larger payloads and longer cargo, so the bed options reflect that versatility.


HD bed lengths and related measurements you may encounter on Ram 2500/3500.



  • Bed length options: 6 ft 4 in (76 inches) and 8 ft (96 inches).

  • Interior width between wheel wells: about 50 inches (127 cm).

  • Overall bed width: roughly 66–67 inches (168–170 cm).

  • Bed depth (floor to top edge): about 21–22 inches (53–56 cm).


As with the lighter Ram models, these measurements can vary by cab style (Regular, Crew) and by whether the truck has additional bed features or aftermarket equipment. Always verify the exact specs for your particular configuration with official sources or your dealer.


How to verify dimensions for your specific truck


To ensure you’re using the right numbers for your vehicle, check the following sources and steps:



  • Owner’s manual or quick‑reference guide for precise bed dimensions.

  • Window sticker or Ram’s official website spec sheet for your model/year and cab/bed combination.

  • VIN lookup with a dealer or Ram’s customer support to pull exact factory specs.

  • If you have aftermarket bed liners, RamBox, or cargo organizers, measure the usable bed space after installation.


By confirming these details, you’ll avoid surprises when buying cargo, accessories, or hauling equipment.


Summary


Across Ram’s lineup, bed lengths most commonly fall at 5 ft 7 in and 6 ft 4 in for the Ram 1500, with 6 ft 4 in and 8 ft options available on heavy‑duty Ram 2500/3500 models. Interior bed width is typically around 50 inches, while overall bed width hovers near 66–67 inches; bed depth is usually about 21–22 inches. Since configurations vary by cab type and trim, always verify the exact dimensions for your specific truck with official documentation or a dealer before purchasing cargo, accessories, or planning heavy loads.

How long is a Ram 2500 with an 8 foot bed?


Vehicle Width and Height Specifications

ConfigurationWheelbaseOverall Length
6'4″ Bed Crew Cab149.5″238.8″
8′ Bed Crew Cab169.5″260.8″
Mar 7, 2025



What are the dimensions of a Ram 1500 truck bed?


The dimensions of a Ram 1500 truck bed depend on the bed length, with two common sizes being the 5'7" (short) and 6'4" (long). The 6'4" bed is about 76.3 inches long, 66.4 inches wide (at the widest point), and 21.5 inches deep, offering 61.5 cubic feet of volume. The 5'7" bed offers 40.6 cubic feet of space. 

Dimension 6'4" Bed 5'7" Bed
Length 76.3 inches
Width (at widest point) 66.4 inches
Width (between wheel wells) 51 inches
Depth 21.5 inches
Cargo Volume 61.5 cubic feet 40.6 cubic feet
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Note: The width measurement at the wheel wells is a crucial dimension for fitting certain items, and is approximately 51 inches. The tailgate opening is about 60 inches wide.



Are all RAM beds the same size?


If you need versatile storage, the RAM truck bed sizes come in three distinct measurements: 5-foot 7-inches, 6-foot 4-inches, and 8-feet. Discover what each model is equipped with below and decide if the RAM 1500 bed length is suitable or if you should upgrade to a heavy-duty model.



What are the dimensions of the inside of a RAM box?


With a storage volume of approximately 61.5 cubic feet, its dimensions are: Length: 76.3 inches. Width: 66.4 inches. Depth: 21.5 inches.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.