A California King bed frame is designed to support a California King mattress, which measures 72 inches wide by 84 inches long. This size is ideal for taller individuals who need extra legroom while sleeping. The frame typically features a sturdy construction, often made from wood or metal, to ensure durability and stability. These bed frames come in various styles, including modern, traditional, and minimalist designs, allowing homeowners to choose one that fits their bedroom decor. Additionally, many frames offer features like built-in storage or adjustable bases, enhancing functionality and comfort in the bedroom.