Some furniture and houses are still made of wood. I was referring to massive skyscrapers made with steel skeletons. In much of the world (where wood is expensiv

Some furniture and houses are still made of wood. I was referring to massive skyscrapers made with steel skeletons. In much of the world (where wood is expensive or hard to find), reinforced concrete (with steel) is a popular choice instead. Furniture is often steel/iron skeleton with a fabric/wood layer over it.