Tongue & Groove 3-1/8" - 1

This tongue and groove measures 3-3/8" wide by 3/4" thickness, commonly referred to as wainscot or beadboard, the design has a 3/8" wide opening consisting of a half-round bead and chamfer on both sides, when two boards are joined together the face becomes 3-1/8" wide with 2-3/4" fillet between the detail.