5 1/8\” square edge paneling. tight knot white pine v-joint endmatched-endura oil. pamlico random plank paneling available in either 27mm or 52mm thicknesses. reclaimed heart pine triple bead paneling. tongue and groove reclaimed barnwood for outdoor patio ceiling image by reclaimed lumber and beams. 2×10 tongue and groove fir paneling in detail. 24 photos gallery of: hardwood tongue and groove paneling ideas.