Cradles, also called as Gondolas is widely used nowadays.
Normally the Cradle is less than 2 meters.
The reason being that it is easily manageable.
It is suitable for two persons cleaning the façade.
It comes in Solo Cradle, Two Man Cradle, Slewing Cradle and Articulated Cradle.
Then the other type of Cradles is TSP also called as Temporary Suspended Platforms.
In high rise buildings it eliminates the use of scaffold thereby reducing COST, TIME and ACCIDENTS.
They are widely used for Glass Panel Replacing, Painting and inside a Lift Duct as well.
The TSP comes in 2+2+2= 6 meters.