Building an ensuite as extension to a bush cabin with wooden floor

[MargA]

Hi need some advice - starting at the ground up room 2700 long by 1200 wide, I am building new subfloor for ensuite to match floor height of existing building.   Running bearers out from building 1200  what spacings for bearers & joists?  Am using steel posts with flat welded on top to be bolted to seasoned hardwood bearers 5x2" Joists pine 900x35    flooring - secura interior fibro 600wide 20mm thick

cheers

[Jason]

Hi @MargA,

Welcome to Workshop. We're pleased to have you join us and trust you will receive lots of helpful advice for this project and many others to come in the future. We have plenty of community members keen to share their knowledge and experience.

You might want to provide a little more detail about your project, or better still, some photos or drawings of what you plan so community members can provide the most accurate advice. I'm a little confused by your mention of a deck. Could you please clarify?

Thanks,

Jason

[MartyH]

Hi @MargA, there's lots of helpful people around here that would be happy to help, but please provide a little more info about what you want to do. @BIM_Engineer might be your best bet for help once you provide some clarification.