Buyers should choose materials based on target market positioning. Solid wood (Oak, Pine, Walnut) offers a premium feel and durability, while MDF (Medium Density Fiberboard) with wood-grain veneers provides a cost-effective alternative for mass retail. For modern aesthetics, Aluminum alloy or Acrylic (Lucite) frames are preferred for their sleek finish and shatterproof properties. Ensure the glazing is high-transparency glass or UV-resistant PS (Polystyrene) plastic to protect the photograph from fading.