The 2016 Ram 2500 (often still referred to by its legacy name, the Dodge Ram 2500) features an overall length ranging from 230.4 inches to 259.4 inches, depending on the cab and bed configuration. The vehicle maintains a standard body width of 79.1 inches (excluding mirrors), while its height varies between 73.3 and 79.8 inches based on the drivetrain and suspension setup.
Understanding the specific dimensions of a heavy-duty pickup like the 2016 Ram 2500 is critical for owners and prospective buyers alike. Whether you are measuring a home garage for fitment, calculating clearance for commercial parking structures, or determining if a specific gooseneck trailer will clear the bed rails, the physical footprint of this truck dictates its utility. As of 2026, the 2016 model remains a highly sought-after vehicle on the secondary market due to its robust 50,000-PSI steel frame and various powertrain options, including the legendary 6.7L Cummins Turbo Diesel.
The Foundation: Wheelbase and Cab Configurations
The primary factor determining the dimensions of any 2016 Ram 2500 is the combination of its cab style and bed length. Unlike light-duty trucks, which prioritize daily drivability, the 2500 series is engineered for maximum stability under load, leading to significantly longer wheelbases.
Regular Cab Dimensions
The Regular Cab is the purist's work truck. In 2016, it was offered exclusively with an 8-foot long bed. This configuration sits on a 140.2-inch wheelbase and has a total exterior length of 230.4 inches. Because there is no rear seating area, the length is dedicated entirely to the cargo area, making it the most maneuverable of the heavy-duty lineup while still providing the maximum bed volume.
Crew Cab Dimensions
The Crew Cab is the most common configuration, offering four full-sized doors and a spacious rear bench. It was available with two bed lengths:
- 6-foot-4-inch Bed: This setup uses a 149.1-inch wheelbase and measures 237.3 inches in total length. It strikes a balance between interior passenger space and a manageable overall footprint for navigating tighter job sites.
- 8-foot Bed: For those needing maximum passenger and cargo capacity, the Crew Cab with a long bed is a massive vehicle. It utilizes a 168.9-inch wheelbase and reaches a total length of 259.4 inches. This is the longest standard configuration available for the 2016 model year.
Mega Cab Dimensions
The Mega Cab is a unique offering in the heavy-duty segment, prioritizing rear-seat comfort and interior storage behind the seats. In 2016, the Mega Cab was only available with the 6-foot-4-inch bed. Despite the shorter bed, the extended cab length results in a 160.0-inch wheelbase and a total length of 248.4 inches. It is longer than the Crew Cab Short Bed but shorter than the Crew Cab Long Bed.
Exterior Width and the Mirror Factor
The body width of the 2016 Ram 2500 is standardized across the lineup at 79.1 inches. This measurement is taken at the widest part of the body, typically the wheel arches, and does not include the side mirrors.
However, the "true" width for parking and driving purposes is much greater. The 2016 model offered two primary mirror types:
- Standard Power Folding Mirrors: These extend the width significantly but can be tucked in for tight spaces.
- Trailer-Tow Mirrors: These are larger, vertical-oriented mirrors designed for visibility around wide trailers. When flipped out into the "tow" position, the total width of the truck can exceed 105 inches.
When calculating whether the truck will fit through a standard 8-foot (96-inch) garage door, the mirrors must be folded. Even with mirrors folded, the clearance is exceptionally tight, as the truck's body leaves less than 9 inches of total wiggle room.
Vertical Clearance: Height and Drivetrain Impact
The height of a 2016 Ram 2500 is not a single fixed number; it is influenced heavily by the drivetrain (4x2 vs. 4x4) and the trim level’s specific tire and wheel package.
- 4x2 Models: These sit lower to the ground for improved aerodynamics and easier ingress/egress. Standard heights for 4x2 models range from 73.3 to 74.3 inches.
- 4x4 Models: The four-wheel-drive hardware and increased suspension travel raise the vehicle significantly. Most 4x4 variants stand between 77.7 and 79.8 inches tall.
It is important to note that these measurements are taken when the truck is empty. Under a full payload or when hitched to a heavy fifth-wheel trailer, the rear suspension will compress, slightly lowering the overall height at the rear of the cab. Conversely, the addition of aftermarket lift kits or larger off-road tires—common modifications for these trucks—can easily push the total height above 84 inches, making most standard 7-foot residential garage doors impassable.
Cargo Bed Dimensions: Internal Measurements
For many users, the internal dimensions of the bed are more important than the external footprint. Ram offered two bed sizes for the 2016 2500 series, each designed to accommodate specific industrial and recreational needs.
The 6-foot-4-inch "Short" Bed
- Length at Floor: 76.3 inches
- Width Between Wheel Wells: 51.0 inches
- Total Width at Floor: 66.4 inches
- Depth: 20.1 inches
The 51-inch width between wheel wells is a critical dimension, as it allows for the flat loading of 4x8-foot sheets of plywood or drywall, which are 48 inches wide.
The 8-foot "Long" Bed
- Length at Floor: 98.3 inches
- Width Between Wheel Wells: 51.0 inches
- Total Width at Floor: 66.4 inches
- Depth: 20.2 inches
The long bed is the preferred choice for gooseneck and fifth-wheel towing. The extra length provides more clearance between the truck cab and the trailer nose, preventing "cab strike" during tight turns.
The Impact of the RamBox Cargo Management System
If a 2016 Ram 2500 is equipped with the optional RamBox system (lockable storage bins built into the bed rails), the internal bed width is impacted. While the width between the wheel wells remains 51 inches, the upper part of the bed is narrowed to match that 51-inch width for the entire height of the bed wall. This creates a rectangular cargo box rather than one with protruding wheel wells.
Interior Dimensions and Passenger Space
The 2016 Ram 2500 interior was praised at its launch for its ergonomic layout and, in higher trims like the Laramie Longhorn and Limited, its luxury-grade materials. The physical dimensions inside the cab vary significantly by model.
| Dimension | Regular Cab | Crew Cab | Mega Cab |
|---|---|---|---|
| Front Headroom | 39.9 in | 41.0 in | 41.0 in |
| Front Legroom | 41.0 in | 41.0 in | 41.0 in |
| Rear Headroom | N/A | 39.9 in | 40.3 in |
| Rear Legroom | N/A | 40.3 in | 43.3 in |
| Rear Shoulder Room | N/A | 65.7 in | 65.7 in |
The Mega Cab’s standout feature is the 43.3 inches of rear legroom. This is coupled with the ability for the rear seats to recline, a rarity in the pickup truck world. These dimensions make the Mega Cab a preferred choice for long-distance travel with adult passengers.
Ground Clearance and Maneuverability
The 2016 Ram 2500 utilizes a unique five-link coil rear suspension system (or an optional air suspension), which differs from the leaf-spring setups found on Ford or GM trucks of the same era. This design impacts the truck’s clearance and how it moves.
Ground Clearance
Standard ground clearance for the 2016 Ram 2500 4x4 is approximately 7.4 to 8.6 inches at the lowest point, which is typically the rear differential housing. The "breakover angle," which determines the truck's ability to clear an obstacle without high-centering, varies from 18.2 to 21.3 degrees depending on the wheelbase.
Turning Diameter
The turning circle is perhaps the most challenging "dimension" for new heavy-duty truck owners.
- The Regular Cab requires 41.6 feet to complete a U-turn.
- The Crew Cab Short Bed requires 45.1 feet.
- The Crew Cab Long Bed requires a massive 49.2 feet.
These figures highlight why the long-bed Crew Cab is often difficult to navigate in standard suburban parking lots, which are designed for vehicles with turning circles closer to 35 feet.
Detailed Dimensions Comparison Table
The following table summarizes the exterior specifications for the most common 2016 Ram 2500 configurations.
| Configuration | Wheelbase | Overall Length | Height (4x4) | Width (Body) |
|---|---|---|---|---|
| Regular Cab 8' Bed | 140.2" | 230.4" | 77.7" | 79.1" |
| Crew Cab 6'4" Bed | 149.1" | 237.3" | 78.2" | 79.1" |
| Crew Cab 8' Bed | 168.9" | 259.4" | 78.1" | 79.1" |
| Mega Cab 6'4" Bed | 160.0" | 248.4" | 79.8" | 79.1" |
Frequently Asked Questions
Will a 2016 Ram 2500 fit in a standard 20-foot garage?
Most likely not. A standard residential garage is typically 20 feet (240 inches) deep. The Crew Cab Short Bed is 237.3 inches long, leaving only 2.7 inches of total clearance. The Crew Cab Long Bed and Mega Cab configurations exceed 240 inches and will not fit in a standard 20-foot garage.
How wide is the 2016 Ram 2500 with the mirrors extended?
When equipped with trailer-tow mirrors in the upright (towing) position, the truck's total width is approximately 105.1 inches. This is nearly 9 feet wide, meaning the mirrors will extend past the sides of many standard residential garage door openings.
Does the engine choice (Hemi vs. Cummins) change the dimensions?
The engine choice does not change the exterior dimensions (length, width, or wheelbase). However, the 6.7L Cummins Turbo Diesel is significantly heavier than the 6.4L or 5.7L Hemi V8s. This extra weight can cause the front suspension to sit slightly lower (by a fraction of an inch), though this is usually compensated for with specific spring rates for diesel models.
Is the 2016 Ram 2500 height the same for all trim levels?
No. High-tier trims like the Power Wagon (which is built on the 2500 platform) feature a factory lift, larger 33-inch tires, and different bumpers that increase the height to approximately 81 inches. Always verify the specific trim if vertical clearance is a primary concern.
What is the maximum bed depth for tonneau cover fitment?
The bed depth of the 2016 Ram 2500 is 20.1 to 20.2 inches. When purchasing a tonneau cover or a bed-mounted toolbox, ensure the accessory is compatible with these heavy-duty rail heights, which are taller than those found on the Ram 1500 of the same year.
Summary of Practical Recommendations
When dealing with a vehicle as large as the 2016 Ram 2500, "measure twice and drive once" is the best policy. For those living in urban environments, the Crew Cab with the 6'4" bed offers the best compromise between the massive interior space the Ram is known for and a length that can still fit into some oversized parking stalls.
If you are planning to tow a fifth-wheel or gooseneck trailer, prioritize the 8-foot bed found on the Regular or Crew Cab models. The extra wheelbase length provides superior directional stability at highway speeds and ensures the trailer nose does not interfere with the truck's rear window during tight maneuvers. Finally, always verify the height of any parking garage before entry; with a standard 4x4 height approaching 80 inches, many older "low clearance" garages (typically 6'8" or 80 inches) are strictly off-limits.
