It ends up that the 7 yards of ripstop I purchased are 1.1 oz (finally got access to a scale today). I was planning on cutting it in half and making two hammocks from it. One for myself (6' and about 195 lbs) and one for my fiance (5'2" and... maybe around 130 lbs [a guess towards the heavy side, I've got no idea]).
From what I've read, 1.9 oz is the recommended fabric, and somewhere I read that it will hold 250 lbs, another place that it has held over 300 lbs.
Again, somewhere here on the forums, I ran across someone saying that they (at about 220 lbs) used 1.1 oz and it didn't break, but not for an extended time.
Is there a "standard strength" for the 1.1 oz that I just haven't run across? I am assuming that it will work for my fiance, and for my sister, but that I might need to search for a 1.9 oz for myself.