Metal bed frames or bedsteads have increased in popularity in recent years. The metal frames come in a huge variety of styles and finishes but are often made of lightweight steel. As with all bedsteads, metal beds often come flat packed which means they are easier to install in rooms or houses with limited access. One of the advantages of metal bed frames is that they are durable and offer a strong base for the mattress. Larger metal frames should have a central support beam to help hold the mattress safely.