One sturdy California king size mattress foundation Durable and lightweight steel frame in a stylish black finish Mattress support system includes 12 sturdy slats Removable textured polyester fabric cover Weight capacity of 600lbs Check out our Zena collection for other size options 70.5L x 83W x 8.5H, in inches Benjara Zena 9 Inch California King Mattress Foundation, Black Steel, 12 Slats Benjara Designed by Benjara, the Benjara Zena 9 Inch California King Mattress Foundation, Black Steel, 12 Slats is built for lasting quality and everyday use. Shop at OJCommerce and explore our collection with free shipping on every order.