Have you ever notice that during a construction is starting to build there are many steel pipes everywhere. What it is? Why they installed that steel pipes?
All of those steel pipes that link to each other we call them scaffolding. We use scaffolding for climb up to work in a high place. It is easy to use that ladder because it has a large space for people to feel free to move. The other reason is it stronger and not easily to collapse.
The disadvantages of the scaffolding are it can’t move quickly from place to place as ladder and it cost more time to install.
But if you have more time and money Mechanicguide guide you to use this one instead of ladder.