Examine chair to find source of squeaking. It can be from the legs, back, or the seat.

To find the source of squeaking you can flip the chair and place it upside down on the ground and observe how the legs are attached to the seat. You can grab each leg with your hand(s) and move it around to see if you can find the squeak. Another way you can check for squeaks is by sitting in the chair and wiggling to locate the squeak.