Beaubois was an early entry candidate for the 2007 and 2008 NBA draft before withdrawing his name from consideration. Prior to the NBA draft, Beaubois caught the attention of scouts at the NBA Draft Combine with his measurements, boasting a 6' 9.75" wingspan (which is extraordinarily long, given his height) and 39" vertical leap. He was selected 25th overall in the 2009 NBA draft by the Oklahoma City Thunder, who traded him, along with a future 2nd round draft pick, to the Dallas Mavericks for Byron Mullens, the 24th overall pick in the 2009 NBA draft.