Yes, Irans TMT Beige Travertine can be used outdoors. Travertine is a durable and versatile natural stone, making it suitable for various applications including outdoor installations. It is commonly used for outdoor paving, patios, pool decks, walkways, and other landscape features. However, it is important to note that proper sealing and maintenance are crucial to ensure the longevity and durability of the stone when exposed to outdoor elements.