Floor Joist Softening

Add an additional row of fas teners midway between the joists to pull the layers tightly together.

Floor joist softening.

If you want to attach drywall to the ceiling later you ll have to install strips of 3 4 in. A day until they re level. A springy or spongy feeling could indicate a minor issue a major problem or. A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals.

When installing on the underside of the joists the process is the same. Properly sistering floor joists is very important and should not be rushed to save time. Long sheets are centered on the span leaving the ends of the joists exposed. Some newer homes have manufactured i beam shaped joists.

Set a hydraulic jack and post under the beam and jack up the joists about 1 8 in. Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s. Since this is a repair of a faulty or damaged floor joist it is imperative to do this project correctly and there are a few big mistakes to avoid. How to fix springy and spongy floors.

The plywood runs parallel to the joists not across them. Choose ring shank nails or screws that are long enough to penetrate the joists by 11 2 in and space them every 6 in. Then glue and screw the plywood to the joists. Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home.

Tack a beam under the sagging joists. No one likes the feel of a supposedly solid floor bouncing or sagging underfoot. Joists and orient panel ends over joists.