Scaffolding is a temporary frame used to support people and material in the construction or repair of buildings and other large structures. It is usually a modular system of metal pipes (termed tubes in Britain), although it can be made out of other materials. Bamboo is still used frequently in Asia.

أعتقد إنها سقاله ثابته، تكون بطول المبني
أما
Cradle
A cradle Is like a bassinet, crib or stock. Which is a small bed, often on rockers, in which babies and small children sleep. Most modern cradles are made of wood, rock or sway and are lower to the ground than a crib or bassinet. Cradles are often used until the child can sit up on their own


فهي سقالة معلقه .. كما موضع في السؤال السابق

I think you scaffold, because scuffle means:
a small fight that lasts for a short time and is not very violent

But as for the meaning of Cradle:
حمالة، محمل إنشاءات،

Scaffold: (سقالة)
a structure consisting of poles and boards on the outside of a building, that people stand on when they are working on the building


--------------------------------------------------
Note added at 1 hr (2009-04-19 15:03:22 GMT)
--------------------------------------------------

Try also to see this link, it has valuable info that might help you elaborating the idea
www.scaffoldtrainingcompany.com.au/pdfs/scaffoldingglossary...

remarkable difference