What are the best ways to prevent warping in wood outdoor rectangular tables with multi-material frames?

Warping is a common issue for wood outdoor rectangular tables, especially those with multi-material frames. To prevent warping, start by choosing high-quality, weather-resistant wood like teak or cedar. These woods naturally resist moisture and decay. Apply a protective sealant or finish to shield the wood from rain, humidity, and UV rays. Ensure proper drainage by designing the table with slight slopes or gaps to prevent water pooling. Use stainless steel or aluminum fasteners in the multi-material frame to avoid rust and maintain structural integrity. Regularly clean and reapply sealant to extend the table's lifespan. Lastly, store the table indoors or use a cover during harsh weather to minimize exposure. By following these steps, you can keep your outdoor table warp-free and durable for years.