Perth, the minor premiers and runners-up the past two seasons, sealed their semi-final series against the Wollongong Hawks with an 80-61 win at the WIN Entertainment Centre.
It completed a 2-0 series win, with Shawn Redhage the star as he scored 16 of his 26 points in a dominant second quarter.
James Ennis (20 points) and Jermaine Beal (15) were also good contributors for the Wildcats, who will be hard to stop in the finals.
Just who they will play in the three-game series starting April 6 remains undecided after the Tigers levelled their series against the Adelaide 36ers.
The Tigers recovered from a slow start to win game two 98-87 at Hisense Arena.
Melbourne were down by 13 points in the second quarter but Chris Goulding was the hero for the Tigers with 37 points.
Perth Wildcats canter into NBL grand final
