How to Replace a Baluster

On this stair, each baluster has a tenon on its lower end that fits into the tread. A cap nailed to the end of the tread holds the tenon in place. Finishing nails secure the baluster's top end to the handrail. (On other stairs, these details may vary.) Each baluster on a tread is a different length, so provide the company making the new balusters with a sample of each length.