This Guide provides information on specific types of scaffolds and scaffolding. Further information please contact Finer Marine Technical Departments.
- Birdcage scaffold
A birdcage scaffold is an independent scaffold consisting of more than two rows of standards in both directions connected by ledgers and transoms. It is mainly used for work carried out on a single level, for example ceilings.
- Trestle scaffold
A trestle scaffold is a scaffold assembled from prefabricated trestles, braces and accessories. Trestle scaffolds, for example ‘A-frame’ and ‘H-frame’ trestle scaffolds, are commonly used by bricklayers, plasterers and painters and for general fit-out and finishing work. Trestle scaffolds generally do not require a licensed scaffolder to erect or dismantle.
- Hung scaffold
A hung or hanging scaffold is an independent scaffold that hangs from another structure but is not capable of being raised or lowered when in use.
- Single pole scaffold
A single pole scaffold consists of a single row of standards connected by ledgers. Putlogs are fixed to the ledgers and built into the wall of the building or structure.
A single pole scaffold is dependent upon the structure against which it is placed for support. It is important that no components of this type of scaffold are removed until the scaffold is being dismantled.
- Suspended (swing stage) scaffold
A suspended scaffold incorporates a suspended platform capable of being raised or lowered when in use. An example of a suspended scaffold is a swing-stage scaffold.
- Tower and mobile scaffolds
A tower scaffold is an independent scaffold consisting of four vertical standards connected longitudinally and transversely or two frames in plan connected transversely to create a scaffold of one bay.
A mobile scaffold is a tower scaffold mounted on wheels.
- Hanging bracket scaffold
Hanging bracket scaffolds are systems supported by frames on buildings or other structures. Hanging brackets are sometimes in the shape of an upside down ‘L’, one arm of which is fixed to a vertical surface, the other projecting horizontally to support scaffold planks.
- Spur scaffold
A spur scaffold is a scaffold supported by inclined load-bearing members.
- Tube and coupler scaffolding
Tube and coupler scaffolds are built from tubing (tube) and joining or fixing components (couplers) fixed together, to form a required scaffold design. They are frequently used on structures with unusual design, shape or function. The versatility of tube and coupler scaffolds means they can be assembled in a wide variety of different configurations. This also means erecting tube and coupler scaffolds can be complex when compared to prefabricated scaffolds.
The diameter and strength of the tube and components being used to form a tube and coupler scaffold will determine the load it can carry. For a scaffold incorporating plain steel tube, the analysis and design should consider the most adverse combination of tubes by wall thickness, strength of the tube material or both.
Steel tubes and aluminum tubes should not be mixed in one scaffold.
Tubes of different wall thicknesses should not be interconnected by spigots or internal-type end-to-end couplers unless extra measures are taken to positively secure the joint. For example, fix a short tube with swivel couplers over and parallel to the joint (splicing) or fix a bridle with right-angle couplers to the adjacent members.
Metal tube and coupler components should be regularly inspected for damage and particular attention given to crushing, deformation, cracks, corrosion and splitting.
- Prefabricated scaffolding
Prefabricated scaffolding is defined as ‘an integrated system of prefabricated components manufactured in such a way that the geometry of assembled scaffolds is pre-determined’.