On this page, you will find the general dimensions of the RAM RAM 3500 HD generation 5 (2019-present), including cargo box dimensions. This page won't display all dimensions. If you are looking for the exact dimensions of a specific cab style, please select one below. First, let's make sure we have the right truck in front of you:

---

Dimensions in tables

RAM truck bed dimensions

Bodystyle	Crew Cab Standard Box (6.5')	Crew Cab Long Box (8')	Mega Cab Standard Box (6'4")	Regular Cab Long Box (8')
Volume (cu. ft.)
Length at floor
Inside height
Width at wheelhouse	51	51	51	51
Maximum width at floor

Wheelbase of the RAM:

Bodystyle	Length (inch)
Crew Cab - Standard Box (6'4")	149
Crew Cab - Long Box (8')	169.3
Crew Cab - Long Box (8') DRW	169
Mega Cab - Standard Box (6'4")	160
Mega Cab - Standard Box (6'4") DRW	160
Regular Cab - Long Box (8')	140.2
Regular Cab - Long Box (8') DRW	140.2

This model comes in 3 body styles

There are 3 bodystyles for this RAM 3500 HD in our database. For exact dimensions, please click on one below:

• Crew Cab
• Mega Cab
• Regular Cab

Most truck models come in different body styles. The RAM 5 3500 HD comes in 3 body styles. Typically the dimensions of different bodystyles differ slightly. The dimensions will greatly overlap, so this page will be helpful to get a general sense of sizing. You can click through to more detailed dimension pages per cab style.

Body styles generally have different cab styles, with the most common ones being the regular cab (two-door), extended cab (more space behind seats), and crew cab (four-door). Manufacturers also offer different trim types, although these will generally not affect dimensions so we don't always list them here.

RAM RAM Crew Cab

Check the dimensions of the Crew Cab

RAM RAM Mega Cab

Check the dimensions of the Mega Cab

RAM RAM Regular Cab

Check the dimensions of the Regular Cab