The 6-foot-3 220-pound Garbutt, who chose Virginia Tech over Pittsburgh, is the 27th commitment in the Hokies' 2017 recruiting class.
"I'm going to Virginia Tech," Garbutt said. "It's relieving and it brings closure because a lot of schools offered. But Virginia Tech is the best place for me and that's why I committed.
"They've recruited me since I was a sophomore, and I've developed great relationships with (defensive coordinator) coach (Bud) Foster and (defensive line) coach (Charley) Wiles. And when coach (Justin) Fuente was hired, I knew he'd bring Virginia Tech back to the top, competing for championships."
Garbutt empasized the importance Foster played in his decision.
"He was the first college coach to recruit me and we have stayed in contact for the past three years," Garbutt said. "Even after I decommitted back in June, he never walked away. Coach Foster recruited me harder than any coach and it just shows how he feels about me. Not only is he a coach, but he's a father figure and he's always there for me.
"Obviously, he's a legendary coach and I'm excited to be coached by the best defensive coach in college football. "I'll play wherever he needs me to play. I just want to do whatever I can to help to team win."
The Riverbend standout is also excited to play for Fuente.
"He's a great coach and won ten games in his first year," Garbutt said. "He knows how to build programs and turn them into champions.
"He has the players' backs and they want to play for him. He develops good relationships and I'm really excited about the opportunity."
With Garbutt in the fold, Virginia Tech now has commitments from four of the state's top 11 players, and the class is one of the best in the country.
"You can see it's a strong class and we all wanted to stay home," Garbutt said. "We want to help bring a national championship to Virginia Tech, which is something it doesn't have, and be the top team in the ACC again.
"I'm really excited to go out and compete with them. Lane Stadium is going to be rocking."
Garbutt finished his senior season with 211 yards rushing, 554 yards receiving and nine touchdowns on offense. Defensively, he had 68 tackles, including nine tackles for loss and seven sacks, seven forced fumbles, two fumble recoveries and two pass breakups.