Heavy-duty steel construction with iron slats and legs creates a stable mattress foundation that supports latex, memory foam, or hybrid mattresses without a box spring. The 14-in high frame provides roomy underbed clearance so storage boxes and bins slide underneath to help keep the room organized. Metal slats are arranged to distribute weight evenly and support up to 220 lbs, 390 lbs, or 570 lbs depending on size. A simple black finish blends with many bedroom styles and assembles using the included instructions.