I'm capable and ambitious but inexperienced. If the solution to my question is obvious, I probably didn't find the answer because I didn't know the right terminology to Google the question!

In my 1938 bungalow, someone (probably in the first decades of the home's existence) created the semblance of framed walls in the basement. The bottom and top plates, however, were not attached to the floor above nor to the concrete below. (Some predecessor of sheetrock was clumsily nailed over the studs--a real mess which I'm glad to have outta there.)

I saved the studs and have them stacked in my garage. It seems silly to buy new lumber when I have this sturdy, dried, thicker-than-the-new stuff studs. Only they're all too short to frame a wall in the tidy ways I read about and watch on the Internet. I should probably trim off the ends that were previously nailed, too.

What would be the best way to get use out of these 2X4s? Would I double the top and bottom plates? Is there some convention for building a wall where the studs aren't tall enough to run from top to bottom in a single length--essentially building a wall with a top, "middle" and bottom plate?

Hope that makes sense. I appreciate your expertise and feedback.

By the way, from my initial research, I think I understand that what I'm proposing doing wouldn't probably be acceptable for load-bearing/exterior walls. If what I read is correct, the primary function of the walls I want to build will be to hold insulation and to secure drywall to.

Thanks a lot.