Metal Bunk Bed Twin Over Twin, Heavy Duty Twin Bunk Beds with shelf and Slatted Support No Box W840107070Sturdy Metal Frame: With square posts and simple design. Made of high quality steel iron, the bunk bed is sturdy and not easily deformed. Both the upper bunk and the lower bunk can bear a weight of 400 pounds. There is a rubber pad at the end of each post to avoid the scratch to your floor. Safety Guaranteed : With 2 built in side ladders to eusure a easier access to the upper bunk,meanwhile the upper bunk is surrounded by full length safety guard