Re: Sill Plate
Sounds like you'll need some jacks and temporary beams. Is this over crawl space or over a basement?
The jacks will need a large plate to sit on -- either a steel plate 1" thick and at least 1.5' x 1.5' or a beam at least 4"x6" and 4 feet long or a large concrete pier block. (Basically, you should have about 2 square feet of surface area on the soil.)
Then you'll need a beam under the joists to jack against, placed parallel to the sill, leaving enough clearance to work on the sill. You'll probably need a steel plate between the jack head and the temporary beam, otherwise you'll probably just drive the jack into the wood.
You'll need several jacks. Try to raise them as evenly as possible. Only jack just enough to get the old sill out and the new sill in. You'll probably end up with some sheetrock or plaster damage. Watch your jacks carefully -- any signs of the jacks tipping could lead to catastrophic collapse or forceful ejection of the jack.
Depending on the age of the house, you may need to have a sill plate custom-milled to the proper dimensions -- stock lumber sizes now are different than they used to be.
Last edited by Fencepost; 12-02-2013 at 12:48 AM.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.