DIY & Home Improvement

Also thought about sistering up to the stubbed out joists using lag bolts and Simpson ties on the opposite side the new wood is attached. Adding a support beam across the span of the decking joists and of course 4"by 4"'s to the ground moving into free standing. Add a protective coating of some type or other to the joist stub outs to stop deterioration .Than of course build away accordingly.

I use to run a program for that sort of thing no so long ago, feeding in the info.,

The ledger of course the other way, is a standard method and lag bolted into those joists after the flush cut,,so your going use what is already there anyway-see what I mean ?

I can't tell by the pic what the extent of rot or deterioration is ,looking at the stub outs.

And dependant upon how far out your going to bump it out would determine rather it requires support where the deck attach's to your home. Looks like yer bumping out to an 8'by 10' there abouts.

Good luck with your project.