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813 Construction Worksite Safety
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Suspension Scaffolds

Suspended scaffolds are platforms suspended by ropes, or other non-rigid means, from an overhead structure.

Two-point (swing stage): Platform supported by hangers (stirrups) suspended by two ropes from overhead supports and equipped with a means to permit the platform to be raised and lowered.

Catenary: Platform supported by two essentially horizontal and parallel ropes attached to structural members of a building. Additional vertical pickups may also provide support.

Multi-point Adjustable: Platform(s) suspended by more than two ropes from overhead supports and equipped with a means to permit the platform to be raised and lowered. Includes chimney hoists.

Suspended scaffolds contain platforms that are suspended from an overhead structure.

Interior Hung: Platform suspended from the ceiling or roof structure by fixed-length supports.

Needle Beam: A platform suspended from needle beams.

Multi-level: Two-point or multi-point adjustable suspension scaffold with a series of platforms at various levels resting on common stirrups.

Float (ship): Braced platform resting on two parallel bearers and hung from overhead supports by ropes of fixed length.

Knowledge Check Choose the best answer for the question.

1-4. Which scaffold type is supported by hangers (stirrups) suspended by two ropes from overhead supports and equipped with a means to permit the platform to be raised and lowered?