The Vikings clicked into gear in the second half following a stern half-time team talk from coach Andrew Kable, eventually cruising to a 47-12 victory over Coffs Harbour.

It sets up yet another season finale at Oxley Oval on August 17 where they will aim to right the wrongs of a 21-14 defeat to the Snappers last year.

They had trailed 7-5 for the majority of the first half on Saturday in a period the coach put down to semi-final nerves.

"I wouldn't use the word complacent, I'd put it down to nerves," Kable said.

"They were under a bit of pressure; their 14s had won, reserve grade had won well and it's then up to first grade to secure that home grand final.

"I think they felt the pressure of the day really, but I'm glad it happened (on Saturday) and they can put it behind them and focus on the job in two weeks."

Kable admitted having a successful home ground record could sometimes also prove to be their biggest weakness.

"It probably gets harder (playing semi-finals at Oxley Oval); the expectation of victory is there and a lot of the people in the crowd are anticipating a Vikings victory," he said.

One of their younger players - teenager Kelly Williams - ironically provided the impact and leadership off the bench that helped the Vikings find their groove.

"We had to use him at about the 17-minute mark and he was outstanding," Kable said.

"He was hard on the ball and his defence was just crucial; it's funny that our 18-year-old player lifted the whole team."

The way they reacted in the second half following the message in the sheds was what pleased Kable the most.

"We haven't had to really be too firm with the side this season on game day from a coaching point of view," he said.

"We were quite firm with them at halftime and they were able to respond."

The 35-point victory secured another home grand final where the club will also be represented in the under-14s and reserve grade who will shoot for their sixth-straight premiership.

"It's awesome and is why you play a competitive sport; it's why they keep score," Kable said.

"Your goal is to make a grand final each year and try and win it.

"It means everything to them from a rugby union point of view and from a sporting point of view ... that's why they're there.

"A grand final at Oxley ... it doesn't get much better than that."

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