When sourcing garden benches, material selection is the most critical factor for durability. For wooden benches, prioritize Grade A Teak, Acacia, or Eucalyptus, as these contain natural oils that resist rot and insects. For metal options, ensure the use of powder-coated aluminum (rust-proof) or hot-dip galvanized steel to prevent corrosion. If opting for Plastic Wood (WPC), verify it has high-density polyethylene (HDPE) content with UV-stabilizers to prevent fading and cracking under direct sunlight.