Round tapered balusters have a 1-11/16" dia base and 7/8" pin top dia. 32" Balusters are used on knee wall (or closed stringer) applications. > 35" & 39" Balusters are used on open stringer applications. 42" Balusters are used for volutes and turnouts. Wood balusters are sold unfinished and manufactured by Kinzel Wood Products. Proudly Made in USA. Please contact us about custom sizes 1-866-683-2025.