CEMCO’s 3/8" Hi-Rib Lath is the most rigid of all metal laths. With full 3/8" ribs longitudinally spaced at 4" apart, and a 1/8" rib between them. Hi-Rib lath is able to span up to 24" on center. The 3" strips of K-Paper attached to the spaces between the 3/8" ribs to minimize blow through of plaster when machine applied. This lath can be used in both vertical and horizontal applications.