Is A Double Cab The Same As Extended Cab. Chevy and GMC use "Double Cab," Dodge uses "Quad Cab," Ford uses "SuperCab" (including on the Raptor SuperCab, seen above) and Nissan uses king cab. The Extended Cab name is used for the Chevy Colorado.
The Double Cab is tighter and the Crew Cab gives ample room for passengers or extra luggage and gear you need to bring along. But it's not all about the upfront cost, as crew cabs will likely have better resale value. Double and extended cabs fall into the same class of cab size, just below the crew (but still bigger than the regular cab).
Choosing the longest version of a pickup cab may require sacrificing space in the bed of the truck, because manufacturers design the trucks so that they fit on the same chassis.
Because of these size differences, it is important to decide which one is the right one for you.
The Double Cab is a nice option if you just want the extra cabin room for additional stowage, or the occasional passenger. Double cab: Safer cab due to B-Pillar (biggest reason for the switch), passengers getting in don't have to wait for you to open the front doors to get in, easier in parking lots next to cars to get in and out of. Few truck companies actually use the name extended cab for trucks in this category.