Laundry Chute regulations in Australia

Hi all,

We have a laundry chute in our new build which just had the cabinets installed this week.

The cabinet opening is 620 wide, but the actual chute is only 270. It's been made from melamine, so this is the size the cabinet maker did himself.

The opening is tiny, and smaller than what was in the display home.

I am asking if there is a building code regulation that specifies the max opening size.

270mm square opening seems very small, most clothes will get stuck.

Thank you