The twin over full 3″ metal bunk bed from Donco is adds extra stability to your metal bunk bed by incorporating 3″ piping into the frame. This adds some extra weight, durability, and stability to the bed for heavier duty use such as adults or older kids. One twin bed and one full allow for two separate sleeping spaces. The metal frame will last for many many years and is finished with gloss silver paint. The entire bed is easy to setup.