What are the different cab sizes for RAM 1500?

The RAM 1500 currently offers three cab sizes: Regular Cab, Quad Cab, and Crew Cab. In older RAM generations, a Mega Cab was also available. This article breaks down what each cab size means, who it’s best for, and how it fits into the lineup today.

Current cab options

The RAM 1500 lineup today centers on three primary cab configurations. The following sections explain each option and typical use cases.

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  Regular Cab

  
  

  A two-door configuration with the smallest footprint, designed for customers who prioritize payload, maneuverability, and lower upfront cost. The Regular Cab is favored for solo driving, fleet applications, and tight urban use where rear-seat access is less important.

  
  


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  Quad Cab

  
  

  A four-door setup with smaller rear doors, offering noticeably more rear-seat space than a Regular Cab while remaining more compact than a Crew Cab. This option suits buyers who occasionally transport passengers or require extra interior storage without maximizing overall size.

  
  


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  Crew Cab

  
  

  A four full-size-door configuration that delivers the most interior room and passenger comfort. Crew Cab models are popular with families and those who regularly transport multiple adults, providing easier rear-seat access and more legroom.

  
  

Historically, RAM did offer a Mega Cab on certain older RAM 1500 generations. The Mega Cab provided even more rear-seat space, but it is no longer offered on modern RAM 1500 models.

Historical note: Mega Cab

The Mega Cab appeared in some mid-2000s Ram 1500 configurations to maximize rear passenger space. It was a short-lived option and was eventually discontinued as RAM shifted focus to the Crew Cab design, which now serves as the standard four-door, full-size crew configuration across most trims.

Summary

Today’s RAM 1500 cab choices—Regular Cab, Quad Cab, and Crew Cab—offer a clear progression from compact and cost-focused to spacious and passenger-friendly. Regular Cab emphasizes efficiency and maneuverability, Quad Cab balances space and practicality, and Crew Cab prioritizes interior room and comfort for passengers. A Mega Cab existed in the past but is not part of the current lineup.

Are all Ram crew cabs the same size?

The length of a Ram 1500 Crew Cab depends on the bed configuration. With a 5-foot 7-inch bed, the Ram 1500 Crew Cab measures 232.4 or 233.7 inches long; therefore, it has a body size of 165 or 166.3 inches.

Which is bigger, a Ram 1500 crew cab or a quad cab?

The main differences between the crew cab and quad cab are the crew cab has more interior passenger and storage space, while the quad cab is smaller and more maneuverable.

What are the different types of cabs on the Ram 1500?

WHAT ARE THE DIFFERENT TRUCK CAB SIZES? Ram trucks come in several different cab sizes to accommodate your needs: Regular, Crew, Quad Cab® and Mega Cab®. A Regular Cab can seat up to three passengers, while the Quad Cab, Crew Cab and Mega Cab feature two rows of seating for up to six passengers.

How do I know if my RAM is a crew cab or quad cab?

You can tell if your Ram is a Crew Cab or Quad Cab by checking the rear legroom and rear door size. A Crew Cab has more rear legroom (about 45.245.245.2 inches) and full-sized rear doors that open independently, while a Quad Cab has less rear legroom (about 35.635.635.6 inches) and smaller rear doors that open in a front-hinged manner.
 
You can watch this video to learn about the differences in cab sizes for Ram trucks: 58sJohn Amato Chrysler Dodge Jeep RamYouTube · Oct 4, 2019

Feature	Crew Cab	Quad Cab
Rear Legroom	More (45.245.245.2 inches)	Less (35.635.635.6 inches)
Rear Door Size	Full-sized, independent rear doors	Smaller rear doors
Rear Door Operation	Open independently	Open in a front-hinged manner (must open front doors first)
Overall Length	Longer (with the same bed size)	Shorter (with the same bed size)
Passenger Comfort	More comfortable for tall adults on long trips	Less comfortable for adults on long trips

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