Wood DURABLE LOW PROFILE CONSTRUCTION: Solid hardwood low profile frame combines timeless design with lasting strength and stability. NO BOX SPRING NEEDED: Sturdy wood slats provide dependable mattress support and promote airflow for a cooler, more comfortable sleep. RECOMMENDED MATTRESS HEIGHT: 8-12 inches WEIGHT CAPACITY: 600 lbs ASSEMBLED DIMENSIONS: L:78.25" x W:42.76" x H:41.34"