Judge Phillip Cooper said that the pair took tool chests, power tools, an engine hoist and a water blaster from the business.
Police searched a property a week later and retrieved a large amount of the material stolen.
Judge Cooper said that Aranui had seven previous dishonesty offences on his record, including three for theft in 2019.
He said that a normal sentencing starting point for the crime would be two years in prison, but there might be "shortcomings" in Aranui's cognitive ability to understand what was going on.
"Cognitive factors would make a sentence of imprisonment very difficult for you," the judge said.
He also said that Aranui's accomplice had scoped out the business beforehand and "it was not your idea to do this burglary".
Judge Cooper sentenced Aranui to six months of community detention, with a 7pm to 7am curfew, and nine months of supervision.
His conditions of supervision included to undergo and alcohol and drugs assessment and do any counselling or treatment as determined by a probation officer.