When sourcing garden chairs, material selection is the most critical factor for durability. Aluminum frames are highly recommended for their rust-resistance and lightweight nature, making them ideal for coastal or humid areas. For wooden options, prioritize Teak or Acacia, which contain natural oils that resist rot and insects. If selecting synthetic materials, ensure the use of High-Density Polyethylene (HDPE) wicker rather than PVC, as HDPE is UV-stabilized and will not crack or fade under prolonged sun exposure.