Most importantly, the steel slats are very durable and make the cal king metal bed frame not only strong but also lightweight. The shape of the frame is rectangular, and one can get the exact dimensions of the frame and purchase a cal king mattress to fit into it perfectly. The frame is easy to set with all its parts, mostly attached to it; therefore, it hardly takes 10 minutes for the California King platform bed frame to get ready. To gain the best solution for a frame, the mattresses must fit properly with the frame to bring in a more durable finish. The support must be reliable and long-lasting. california king size bed frame