Which two types of scaffolding are commonly used in construction?

Frame scaffolding and suspended scaffolding are indeed two commonly used types of scaffolding in construction, each serving specific purposes based on the nature of the work being done.

Frame scaffolding consists of a system of vertical posts and horizontal frames, providing a stable platform for workers to access heights. It is versatile and can be assembled in various configurations, making it one of the most frequently used scaffold types on construction sites. This type of scaffolding is especially useful for projects that require significant height and durability.

Suspended scaffolding, on the other hand, is utilized for work on taller buildings where access is needed to upper levels. It typically involves platforms that are suspended from a structure, allowing workers to adjust their working height as they progress. This type is particularly advantageous for tasks such as window washing or exterior building maintenance, as it can easily be moved up and down.

The other options listed, while they do refer to legitimate scaffolding types, are not as commonly utilized in general construction practices as frame and suspended scaffolding. This makes the identification of frame and suspended scaffolding as the correct answer particularly relevant in contexts where maximum versatility and accessibility are essential for effective and efficient construction work.