Edge & Center Bead Board. A Dose Of Curb Appeal With Extra Toughness. This traditional profile replicates the look of tongue-and-groove wood planks without many of the maintenance worries. It’s the perfect size for soffits but can also be used in a variety of applications where durability is a must. Actual Size: ¾ in. x 5½ in. x 18 ft., 2½ in. O.C. (on-center bead)