Dependent scaffolds are those that use the walls of the building under construction in conjunction with the standards to uphold the outer deck of the scaffold. To be able to use the wall for support, a putlog is used for attaching the scaffold to the wall. A putlog can be described as a transom that has a flattened end that allows it to rest solidly on the edge of a wall.
The main difference between dependent and independent scaffolding is that independent scaffolds do not rely on the walls of the building for support, but instead use two lines of standards to support the working deck.
For independent scaffolding, the scaffold structure does not rely on the building for support but is tied for security purposes. For dependent scaffolding, the structure is fully dependent on the building for its support.
Advantages of dependent scaffolding
Due to dependent scaffolding relying on a wall for support, it is more rigid and can stand some harsh weather conditions. This type of scaffold structure is also quite convenient as it does not require as many parts as independent scaffolding.
The fact that dependent scaffolding is supported by the building walls also makes it much safer for the construction workers to use.
|Dependent scaffolding||Independent scaffolding|
|They use the walls of the building under construction to uphold the outer deck of the scaffold||They do not rely on the walls of the building for support but it’s tied for security purposes|
|To be able to use the wall for support, putlogs are used to attach the scaffod to the walls||They use two lines of standards to support the working deck|
|More rigid and doesn’t require as many parts||Requires more parts to ensure it’s sturdy|
With proper knowledge of the existing differences between dependent and independent scaffolding methods, you can now make a better-informed decision on which best suits your construction site. Any contractor should choose the method which best regards the safety of their builders and those around the construction site.