Shoring Floor Joists

Thre ways to fix a sagging or sloping floor add reinforcing metal.

Shoring floor joists.

Plywood firmly fastened to the undersides of joists helps prevent this side to side bending and stiffens the floor. Set a hydraulic jack and post under the beam and jack up the joists about 1 8 in. Instead it may be an issue with joists and beams below your floor that require shoring up. All gateway industries joists beams stringers are compatible with all major aluminum shoring systems including aluma systems aluma beam aluma stringer aluma strongback and jasco s hi lite beam hi lite stringer and patent construction harsco patent joist patent stringer and symons joist symons beam and safway joist safway stringer and waco scaffolding beam waco stringer etc.

Measure the width between the span of two joists. Place the lumber block between the two joists. Nail the block in place with 16d. Adding that extra layer makes a big difference tom says.

Cut a piece of 2 by 6 or 2 by 8 lumber according to the width. 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. Finally many pros have praised luxor s ibs2000 an interlocking bridge system sized especially to fit between the flanges of i joists for quick added stiffness. A layer of 3 4 in.

In some cases pouring floor leveling compound will fix the problem. Tack a beam under the sagging joists. Squeaks in a floor usually mean that the subfloor has loosened from the joists. A day until they re level.

For this fix to work well the upper edges of the joists must be solidly fastened to the subfloor above.