A scaffold is a framework that people stand on while they are building or repairing a tall structure. In some countries the frame of scaffolding is made from bamboo, but it is more commonly made from steel or aluminium. Scaffolding has platforms that can support people, tools and building materials. Some scaffolding is so small you can use it to paint the walls inside your house, and some is several storeys high. Using scaffolding is much safer than using a ladder.