fixing floor sag - piers
I've read a bunch of other threads on the floor sag issue but still have some questions... Have some sag (joist sag) in two rooms due to long spanning joists, had an engineering group take a look and they recommended additional piers on concrete footings, and a beam perpendicular to the joists to shore them up. I'm thinking about using something like the Ellis screw jack for the project, both for jacking AND as permanent supports, as a couple of jacks should be able to handle the load. The biggest pain by far seems to be pouring 12x12x12 inch footers in the crawlspace. Ugh. So I am wondering if there are any pre-cast footings available to do the job, something that just sits on the ground. After all, this is not huge load we are talking about...ideas?