The four-star from Cedar Falls (Iowa) then took in his third school in contention, Stanford, before evaluating all of his options over another two-week period.
On Sunday, BamaMag.com learned that his decision was Alabama, becoming the fifth offensive lineman committed to the back-to-back defending national champs.
He issued a statement on the matter:
"The past few weeks there has been speculation of my commitment to the University of Iowa Football program. I would like to end the speculation as I prepare to enter my senior season so that I may focus my attention to my team.
I would like to thank Coach Ferentz, his coaching staff, and the University of Iowa for the offer to be part of Hawkeye Football. They have a great tradition, outstanding people and a top notch program.
After considering many different options and things important to me, my family and my future career, I am excited to announce that I have decided to play my collegiate career for Coach Saban and The University of Alabama.
This has been a very humbling experience and I would like to thank everyone that has helped me along the way."
"It surpassed my expectations," Pierschbacher said after his July visit to Tuscaloosa. "The people inside the building show the more important thing, though. The bells and whistles are amazing and all, but the people inside of it stood out. It's a big family, everyone was very focused on the task at hand. There were no distractions, which is pretty neat.
"They're still the same old people like me, very down to earth. Even the big recruits, they're normal."
"I like it laid back, being from Iowa that's how we are," he continued. "I'm even more laid back than most Iowa people. I'm low-key, they are too. We go about our business and work hard.
"Those guys fit that mold."
The 6-foot-5, 270-pounder is considered the No. 2 offensive guard prospect in the class of 2014. Alabama envisions Pierschbacher "anywhere on the offensive line," according to the rising-senior.