Steven Smith had the wood on South Australia as his New South Wales team routed the Redbacks by an innings and 39 runs at the Sydney Cricket Ground on Friday.

Smith complimented his 128-ball century with a haul of 7 for 64 from 16 overs as the Blues stormed to a massive victory in their final Sheffield Shield clash of the season.

After three Blues batsmen – Usman Khawaja, Smith and Peter Nevill – scored centuries to help the home side to 9 (declared) for 550, the Redbacks were bowled out for 267 and 244.

The visitors came close in their second dig but after burly left-hander Mark Cosgrove was trapped in front by Smith for 105, no other South Australian could go on with it.

James Smith earlier scored 79 to dig the visitors out of a hole at 2 for 17 chasing 283 for victory in the dead rubber.

He and Cosgrove combined for 167 before Steve Smith dismissed both men and then went on a rampage, bagging five more wickets as South Australia lost 8 for 60.