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Types of scaffolding

Short answer

Scaffolding is a temporary framework of timber, bamboo or steel erected to support workers and materials at height during construction. Types include single (brick layer's) with one row of standards, double (mason's) with two rows, cantilever with projecting needles, suspended, trestle, steel tubular, and patented.

Define scaffolding. Describe the types of scaffolding with necessary sketches.

Scaffolding is a temporary framework of timber, bamboo or steel erected beside a building so that workers and materials can be placed at height while the structure is built, repaired or cleaned.

Types of scaffolding

1. Single (brick layer's) scaffold: A single row of standards is placed 1.2-1.5 m from the wall, joined by ledgers. Putlogs rest on the ledgers at one end and are fixed in the wall holes at the other end. Used in brick masonry.

  wall |           ledger
  wall |--putlog---|---
  wall |           |
  wall |         standard
  wall |           |

2. Double (mason's) scaffold: Two rows of standards, the first 20-30 cm from the wall, the second about 1.2-1.5 m away, joined by ledgers and putlogs resting on the two ledgers. Used for stone masonry, where holes cannot be made in the wall.

  wall | std  ledger  std
  wall | |=putlog=====| |
  wall | |            | |
  wall | |  braces X  | |

3. Cantilever scaffold: Needles projecting out of the wall (through holes) carry the platform, with struts. Used when the ground is unsuitable for standards.

4. Suspended scaffold: A platform hangs from the roof by ropes or chains, raised and lowered. Used for painting and repairs.

5. Trestle scaffold: Movable platform on ladders or trestles; for inside work up to 5 m.

6. Steel (tubular) scaffold: Steel tubes with couplers; strong, fast to assemble, re-usable and used for high buildings.

7. Patented scaffold: Manufactured frames with special couplings.

✓ Answer checked by Claude Opus 5.5 (high effort)

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