Replace Second Floor Beams

Tack a beam under the sagging joists.

Replace second floor beams. Deteriorating floor joists posts or beams can be caused by termite infestation water damage or dry rot. I suppose somewhere in the world there are floor joists that need to be repaired that have wide open clear joist bays with no pipes wires or obstructions. Then set new joists same height as existing ones alongside the old. Depending upon the conditions it is possible to strengthen or repair existing framing members such as floor joists or roof rafters by adding reinforcing material sandwiching the member on either side with plywood is sometimes worthwhile but the plywood must be installed correctly for greatest strength.

Locate the damaged floor joist and measure the length of the damaged area. If only a few joists are rotted primarily at the bottom they can be repaired using a process known as sistering after the rot is cleaned away and the timber treated to prevent more problems a new joist is laid beside the old one and fastened to it. Cut one of your 4 inch by 6 inch beams to a length about six inches longer than your measurement. A day until they re level.

Thre ways to fix a sagging or sloping floor. Set a hydraulic jack and post under the beam and jack up the joists about 1 8 in. I recently had to repair a floor joist that had cracked. Repair sagging cracked or broken floor framing.

They can span as much as 20 feet and many times they can be doubled as decorative pieces. Support the weight above. Measure the length of the beam on the left of the sagging beam. Nailing two 2x4s together will work to span about three joists unless the sag is under a weight bearing wall.

How much repairing floor joists should cost. Replacing joists costs around 100 to 300 for each new joist. Replacing a dry rotted beam is not a difficult task if you follow the tried and true methods listed below. Deteriorating floor joists or posts.

Cut your second 4 inch by 6 inch beam to equal the length of the beam.