What are the key considerations when designing stackable or modular outdoor furniture?

When designing stackable or modular outdoor furniture, several key factors must be considered to ensure functionality, durability, and aesthetic appeal. First, space-saving design is crucial, as stackable and modular pieces are often chosen for their ability to maximize limited outdoor areas. Second, material selection plays a vital role—opt for weather-resistant materials like powder-coated metal, teak, or high-quality synthetic wicker to withstand outdoor conditions. Third, ease of storage and portability should be prioritized, ensuring lightweight yet sturdy construction. Additionally, modular furniture should offer flexible configurations to adapt to different settings. Finally, consider comfort and style, balancing ergonomic design with contemporary or classic aesthetics to enhance outdoor living spaces. By addressing these considerations, designers can create practical and long-lasting outdoor furniture solutions.