Hiya Folks, I need to raise up the roof of a porch a bit to get old columns out and new ones in. I was hoping to use the type of jacks I see (and used ages ago) on concrete pours to plumb up the forms. Basically was thinking of attaching a 4x4 to each end of the jack and then be able to turn the turnscrew in the center to raise and lower the roof. First question: What are these called? 2nd: Can I do this or am I asking for trouble? Next, if these are not recommended for use, then I suspect I'll be heading the bottle jack route which is fine but I'll have to do each one individually as I don't have 4 bottle jacks (number of colums to be removed). Thanks for any inputs. Cheers, cc
- posted
15 years ago