Smith returned a punt 62 yards for a first-quarter score that put Wood in front, 21-0. Soon after, Ryan McMullin followed his 30-yard reception with a 7-yard TD burst.
Dobbins was held to 25 yards (22 rushing, 3 passing) of offense in the first half. The Mustangs (9-3) were stopped behind the line of scrimmage on six of 12 first-quarter rushing attempts.
The Vikings, who began using their second-team offense late in the second quarter, closed the scoring on sophomore reserve Kendall Singleton's 3-yard run late in the third quarter. It capped a 14-play, 87-yard drive.
Thanks to a 38-yard kickoff return by Kevin Norris, Dobbins threatened to score early in the third quarter. But on second and 8 from the Wood 22, Delane Hart's rushed throw toward the end zone was picked off at the 4-yard line by Benji Abercrombie.
In a Class AAA state quarterfinal the weekend of Dec. 2-3, the Vikings will meet the winner of Friday's District 1 championship between Phoenixville (9-3) and Pottsgrove (10-2).
Wood has won its four district titles by a combined score of 191-20.
Archbishop Wood 28 14 7 0 - 49
Dobbins 0 0 0 0 -0
AW: Adkins 11 pass from Monaghan (Visco kick)
AW: Adkins 7 pass from Monaghan (Visco kick)
AW: Smith 62 punt return (Visco kick)
AW: McMullin 7 run (Visco kick)
AW: Smith 30 pass from Monaghan (Visco kick)
AW: Thompson 11 pass from Monaghan (Visco kick)
AW: Singleton 3 run (Buonomo kick)