Concrete Screws

Discussion in 'Carpenters' Talk' started by jayel49, Oct 7, 2015.

  1. jayel49

    jayel49 New Member

    What length of concrete screw would I need in order to secure a 37mm batten onto a concrete ceiling which has a 10mm layer of plaster on it?

    The battens are required so that I can dry line the ceiling to cover electrical trunking following a rewire.

    Thanks

    Mike
     
  2. DIYDave.

    DIYDave. Screwfix Select

    Would suggest that the thickness of the concrete ceiling also needs to be taken into consideration before deciding on screw length
     
  3. Ryluer

    Ryluer Well-Known Member

    90mm.
     
    jayel49 and KIAB like this.
  4. jayel49

    jayel49 New Member

    The concrete that forms my ceiling and floor of the flat above is 200mm thick.
     
  5. KIAB

    KIAB Super Member

    Perfect, if you can't get 90mm, then use 100mm.:)
     
    jayel49 likes this.
  6. Ryluer

    Ryluer Well-Known Member

  7. jayel49

    jayel49 New Member

    Thanks for all the answers.

    One more thing I need to know. I'm going to fix the battens at 400mm centres but how far apart should the screws be along each batten?
     
  8. Ryluer

    Ryluer Well-Known Member

    Start the first one in about 0.3m then about every meter.
     
    jayel49 likes this.

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