Williams, a 6-foot-6, 273-pound offensive lineman from West Roxbury (Mass.) Catholic Memorial, officially became a part of that recruiting class Wednesday with the faxing of his National Letter-of-Intent.
"It really feels great," Williams said. "Everything is coming to an end today. It's kind of like me taking the next step and finally being a part of the team that I really want to be on."
Before announcing his verbal commitment to UNC on national television a month ago, Williams took official visits to Boston College, UNC, Virginia and Wake Forest.
"I liked a lot of schools, but UNC was really the perfect fit," Williams said.
While the trend is to red-shirt incoming offensive linemen, UNC hasn't ruled out the possibility of Williams seeing playing time next fall.
"The plans for me are to get me playing as soon as possible," Williams said. "If I have to red-shirt, I will. If I'm ready to play next year, wherever I can, I'm going to play."
To improve his chances at seeing the field, Williams elected not to participate in any sports following the football season and, instead, worked overtime in the weight room.
"I'm trying to avoid that red-shirt year next year," Williams said.
Williams, who says "everything is all set" academically, will arrive in Chapel Hill in June.