How do WPC outdoor bar stools handle expansion/contraction at connection points?

WPC (Wood Plastic Composite) outdoor bar stools are designed to withstand natural expansion and contraction caused by temperature and humidity changes. The connection points in these stools typically feature flexible fasteners or engineered gaps that allow slight movement without compromising structural integrity. Many manufacturers use weather-resistant hardware like stainless steel or coated screws to reduce friction and prevent cracking. Some designs incorporate expansion slots or oversized holes to accommodate material shifts. The WPC material itself has lower thermal expansion rates than solid wood, further minimizing stress on joints. Properly designed WPC stools maintain stability through seasonal changes while resisting warping, splitting, or loosening at connection points. Regular maintenance, including occasional tightening of hardware, can extend the product's lifespan in outdoor environments.