3/8” High Rib Lath is intended for horizontal applications with its seven longitudinal ribs, each 3/8 inch deep and eight small flat ribs to provide additional rigidity. The herringbone mesh pattern provides excellent bonding of the stucco to the lath for ceiling and soffit installations. The 1/8” flat ribs at the outer edge of the sheet allows for a smooth overlap reducing plaster cracks at the laps. For these reasons plus the fact that this product will span up to 24” o.c. makes High Rib an excellent lath for horizontal installations.