Screws for 6mm ply

Discussion in 'Carpenters' Talk' started by kemical, Feb 1, 2008.

  1. kemical

    kemical New Member

    Hi
    I’m about to lay some Plywood 6mm over a chipboard floor 18mm to even it out.

    What type and size of screws should I use for the above?
    How far apart should the screws be screwed?

    Thank you in advanced
  2. jasonb

    jasonb New Member

    20mm will do the job and won't go through the bottom of the chipboard into any pipes etc.

    Around 200mm centers for spacing.

    Jason
  3. kemical

    kemical New Member

  4. jasonb

    jasonb New Member

    Go upto a 4.0x20 in either of those types the heads on the 3.0mm ones are a bit small and may pull through.

    Jason
  5. kemical

    kemical New Member

    Hi

    Thank you for that
  6. jaygee45

    jaygee45 New Member

    Is pre-drilling or countersinking needed for the 4.0x20?
  7. malkie129

    malkie129 Active Member

    I had no need when fixing my floor, but I used 9mm ply . Straight in....No probs. :D
  8. malkie129

    malkie129 Active Member

    Should have mentioned that I did use 4 x 25 screws. ;)
  9. chippie244

    chippie244 Well-Known Member

    They may self countersink or not, try it and see.
  10. jaygee45

    jaygee45 New Member

    Self countersinking working as long as angle is true. Keeping with small heads even with risk of pulling through. Thanks for advice

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