6m Decking Bearers

[hewat]

Hello All

I'm planning a decking that will hopefully have 6m (6000mm) single span bearers. (I need to use the space underneath) I have the Allan Staines guide but the table only goes up to a span of 3000mm. Does anybody know the size of the bearers I'll need to use, the stress grade and load width?

Hope you can help?

Matt

[echnidna]

For that span you'll need to use a steel beam to support the joists,
consult an engineer for the size.