Division 43 Capital Works Allowances (the building itself) – bricks, roof, framing, windows, doors, plaster, kitchen cabinetry.
Division 40 Plant and Equipment (carpets, blinds, A/C, ceiling fans, kitchen appliances etc).
In residential division 40 is only allowed on new properties, or assets purchased by the current owner as new if the property settled post 9 May 2017. You are not allowed to claim a division 40 deduction for second-hand assets when the property settled or became income producing post 9 May 2017.