7m wall to wall

Thanks again, ill get an assessment for sure.

Thank you Beetaloo, do you think I'd need to remove the roof to set in extra ceiling joists or could they be put in as is?

Hi Paul, it is a commercial space. timber trusses. I've got a photo but haven't figured how to upload it.

I'm looking to install a gyprock ceiling. My roof trusses are spaced at a whopping 1600mm. Any advice on steel channel or timber battens that won't sag with that span…