I want to build an overhang over my future cement patio. Can I set the posts in the ground before the cement is poured, or do I need to set the posts outside of the actual future deck’s measurements?
You can use a elevated post base made by Simpson Strong Tie (EPB44 or EPB66) to set your post and come back and pour your concrete later. I would set the EPB in a smsll concrete footing leaving enough height to pour the slab the height you want. You can see these at http://www.strongtie.com/