Pizzaz
Likes Dirt
Max bag size is 32kg - no matter how much excess you pay (mandated oh&s thing) At 30kg they can refuse to take it depending on mysterious conditions that cannot be revealed to the traveling public!The baggage weight limits are (supposedly) in place because it has to be handled by the baggage handlers on and off the plane. Passengers for the most part are able to walk themselves on and off no worries.
Guess this is one good thing about traveling with a small child - they get an adult baggage allowance both for checked and carry on luggage. I think qantas has now moved to an 'as many bags as you like below the combined weight limit' system (or at least that was the way it worked a couple of weeks ago in domestic). Of course no checked bag can be more than 32kg and no carry on more than 7...
But of course you do get a laptop bag separate from your carry on luggage... Many ways to rort the system if you're creative