There is no reason to throw out a chair because of a loose chair rung. Fixing a loose chair rung is quick and easy to do. It is a great skill that allows you to fix flea market finds and garage sale cast-offs, or just to prolong the life of your existing dining set.
Heat a small bowl of vinegar in the microwave for 10-20 seconds. It should be warm, not hot. The vinegar will help remove the old glue on the chair rung.
Step2
Soak the end of a cotton swab in the vinegar. Dab the cotton swap at each end of the loose rung, as far into the joint as you can go.
Step3
Scrape away as much of the glue as you can with a dull knife, being careful not to shave too much of the wood off.
Step4
Apply fresh wood glue to each end.
Step5
Tie a rope around the chair legs and insert a wooden dowel or other short stick in the knot. Next, turn the dowel to tighten the rope to create the pressure needed for the loose rung to stay in its proper place.
Step6
Leave the dowel tucked behind the chair rung to keep the rope taut and maintain pressure. Let the glue dry for 24 hours before removing the dowel and rope.