For commercial applications, prioritize a wear layer thickness of 0.5mm (20 mil) or higher to ensure durability under heavy foot traffic. For residential use, 0.3mm (12 mil) is generally sufficient. Additionally, verify the core type: SPC (Stone Plastic Composite) offers superior indentation resistance and stability, while WPC (Wood Plastic Composite) provides a softer, quieter underfoot feel. Ensure the total thickness ranges between 4mm to 8mm depending on the installation environment and subfloor condition.