Can trex wood be used for soil contact?

Trex wood, made from a composite of recycled wood and plastic, is not recommended for direct soil contact. While it is resistant to moisture and decay, the manufacturer advises against using it in applications where it will be in direct contact with the soil. Instead, Trex products are best suited for elevated structures like decks and railings. If soil contact is necessary, consider using pressure-treated lumber specifically designed for that purpose.