Every structure should be steel...What if you have a severe storm?
You have no ####ing idea what you are talking about. There are Australian Standards to deal with this stuff and when installed in accordance with them timber/steel are both as adequate as one another. Refer to AS1684.3 (Residential timber-framed construction (cyclonic areas)) and AS4055 (Wind loads for housing) amongst others.
it comes down to personal prefernce.....wood..mayb be cheaper but what type f wood? if its hard wood (the good hard wood) then that would be good.... but if its the **** pine then go with steel!
Yet another person who has no idea what they are talking about. I'd be interested to hear why you think hardwood is better.
when me parants built there house (i was 14, me and me dad built it) we had steel frame, at the time the steel frame was cheaper then wood...go figure! and it was twice as thick steel as the **** you get now.
Steel frame/timber frame - each are perfectly adequate alternatives for construction.
also is 13k with the slab? if so thats about average price for that size
Not sure how you could establish that without at the very least engineering and/or soil test data.
No slab, another $7200 for the slab, which i lol'd at ($1100 per cubic meter)!! so far this is the only mob that have even attempted to quote, everyone else has just said no, can't do it, due to the shape.
Might have to keep looking.
Rufus - pm me your plans and engineering and I'd be happy to look at it for you. I do this for a living.
How would the timber go in the wet?
Dont be jelly now...
Unless he is going to build a shed without a roof it will perform fine. Even where there are exposed timbers, choose appropriate species, paint it and maintain it properly and they will last for decades.
To the OP, in general terms, a "off the shelf" designed steel shed will be the cheapest alternative by far. If you want the above shape then probably a timber frame/trussed roof will suddenly become more economical. You will also have the advantage of more cladding options (say to match your house if there is one near by).