Dimpled self furring lath is used as a substrate for gypsum plaster or for Portland cement plaster stucco on exterior or interior walls. Manufactured with approximately 1/4" deep dimples that are spaced every 1-1/2" o.c. over the entire 27" x 96" rectangular sheet: this pattern holds lath away from solid surfaces like cement board, masonry, old surfaces, etc... & enables the plaster to penetrate fully bond. To maintain the designed furring characteristics, fasteners must be applied in the dimple cavity.