Park chairs are designed to accommodate a wide range of body weights by incorporating durable materials, reinforced structures, and ergonomic features. Manufacturers use high-strength materials like steel, aluminum, or reinforced plastics to ensure stability and longevity. The frames are often engineered with additional support beams or cross-bracing to distribute weight evenly and prevent bending or breakage.

Ergonomic designs, such as contoured seats and backrests, help distribute body weight comfortably, reducing pressure points. Chairs intended for higher weight capacities may feature wider seats and thicker legs for added stability. Some designs also include weight capacity labels to guide users.

By balancing aesthetics, durability, and functionality, modern park chairs provide safe and comfortable seating for individuals of all sizes, ensuring inclusivity in public spaces.