Maple wood furniture is generally not recommended for outdoor use. While maple is a durable hardwood, it is not naturally resistant to moisture, which makes it susceptible to damage from exposure to the elements. When exposed to moisture, maple wood can swell, warp, and crack, which can compromise the strength and integrity of the furniture. Maple wood furniture is also vulnerable to damage from UV rays, which can cause the wood to fade and lose its natural color. If you're looking for outdoor furniture, it's best to choose materials that are specifically designed for outdoor use, such as teak, cedar, or treated pine. These woods are naturally resistant to moisture and can withstand exposure to the elements.