Base Block is 6-1/4 inch wide. Trunk is 4-3/4 inch wide. Flat Panel is built using true stile and rail construction, not just a routed out design that gives the illusion of a flat panel box newel. "Pyramid" peak style cap available at no extra cost (just make a note in the checkout section) or contact us to place the order. - See more at: https://www.stairparts.net/2/2747_6-1-4-inch-Box-Newel-Post-Flat-Panel.html#sthash.PkBg1pB9.dpuf
