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From put +‎ log.


putlog ‎(plural putlogs)

  1. (architecture) One of the short pieces of timber on which the planks forming the floor of a scaffold are laid, one end resting on the ledger of the scaffold, and the other in a hole left in the wall temporarily for the purpose.
    • 1995, International Labour Office, Safety, Health and Welfare on Construction Sites: A Training Manual, page 21:
      A common type of scaffold for smaller jobs is a single pole or putlog scaffold which consists of a platform resting on horizontal putlogs (called transoms in independent scaffolds) fixed at 90° to the face of the building (figure 15).
    • 2005, Malcolm Thorpe, Brickwork, Level 3, page 85:
      The platform in this type of scaffold is supported by putlogs and not transoms.
    • 2008, Construction Confederation, House Builders Health & Safety Manual 2008[1], Construction, ISBN 9781852631246, page 7-15:
      Where putlogs are not required to support boards, a putlog must occur within 300mm of each standard. / When bracing is connected to a putlog, the putlog must be connected to a ledger.


Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.