What is the technical name for my truck?

I have a single cab that is extended an additional foot (estimate) for storage. I always thought it was just called an f150 extended cab (its a ford truck). However, every time I look for a subwoofer box for it, apparently an extended cab is the same as a crew cab.

So what is the technical name of my truck and if you also know of a subwoofer box that holds 2 10" subs and will fit snug in my 2005 f150 please let me know!

Read more: What is the technical name for my truck?