The tenon goes in 2 1/2 inches,gets glued clamped both ways and trim head screw at bttm just for sh¡ts and giggles. The ballusters are double dowel, looks cleaner than a plow and definetly a bit sturdier. Anyhow hopefully this helps someone, let me know what you guys think and stay tuned for more finish carpentry tips and pointers. ‎#carpentry #craftsman #newelpost #homeimprovement #stairs #tools ‎#hardwood #construction #oddlysatisfying #mitermasters #finishcarpentry #contractor ‎#builder #join