Cross-tie material on the canes of a sleeping mat, ātag di olo'an; an attic mat, ātag di palan; granary mat, ātag di ālang; or on arrow-grass cane purlins, ībat, of a house roof.
Cross-tie material is usually rattan, uway, litū'u; a two-strand rope, linūlug, is sometimes used as cross-tie material for a sleeping mat.