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  1. #1
    Join Date
    Sep 2014
    Location
    Perth
    Posts
    3

    Default Decking timber restore

    Hi guys

    I have approx 30m2 of jarrah decking which I got from a client which they pulled up from there house.
    Its been denailed. The deck was laid reed side up, I am looking at using it for a small deck project.

    I was going to use smooth side up but on smooth side there is a dark stain where the deck was sitting on the joists.

    Now I have sanded the timber back and it comes up really good and seems a shame not to use it, but the dark stains are a no go.
    Any ideas on how to remove, I was planning on putting it through a thicknesser but have concerned about taking too much off the timber.
    2014-12-01 20.53.37.jpg

    2014-12-01 20.54.00.jpg

    Another Idea was to run the timber through the thicknesser the reeded side up will lose about 3mm from 20mm board.

    Cheers

  2. #2
    Join Date
    Oct 2014
    Location
    Caroline Springs, VIC
    Posts
    255

    Default

    have you tried any deckclean stuff + high pressure cleaner? It might get the timber to be a uniform colour along its length, but i suspect the staining from where it sat on the joists will still be noticeable (especially since you already know that it is there).

    failing that, a skim pass through a thicknesser wont hurt, 0.5-0.8mm off the face. probably still have a noticeable mark, but if when you oil it, use a stained oil, and in time the sun will bleach everything to a fairly uniform colour.

  3. #3
    Join Date
    Aug 2011
    Location
    bilpin
    Posts
    510

    Default

    Nappysan and water should do the trick

  4. #4
    Join Date
    May 2012
    Location
    Woodstock (Cowra)
    Age
    75
    Posts
    832

    Default

    Oxalic acid mixed with hot water, liberal soaking and rinse off.
    The person who never made a mistake never made anything

    Cheers
    Ray

  5. #5
    Join Date
    Nov 2003
    Location
    between orange & forbes nsw
    Age
    78
    Posts
    53

    Cool oxalic acid

    Quote Originally Posted by Kuffy View Post
    have you tried any deckclean stuff + high pressure cleaner? It might get the timber to be a uniform colour along its length, but i suspect the staining from where it sat on the joists will still be noticeable (especially since you already know that it is there).

    failing that, a skim pass through a thicknesser wont hurt, 0.5-0.8mm off the face. probably still have a noticeable mark, but if when you oil it, use a stained oil, and in time the sun will bleach everything to a fairly uniform colour.
    Yep, deck cleaner which is oxalic acid, mix with water applied liberally then scrub it in with a very stiff broom then wash off. Don't get it on the plants though. If that doesn't remove it then a skim pass through the thicknesser sounds like the best option, but off the face not the reeded side as that's designed to allow air between the board and the joist to reduce the incidence of rotting.

  6. #6
    Join Date
    Aug 2005
    Location
    Queensland
    Posts
    613

    Default

    Napisan. Tick. May take more than one application.

    Smooth side up is the way to go.

    When reeded decking boards were introduced, I was told by a rep that the reed side was designed to go underneath as it allows the board to "breathe" where it sits on the joists and "prevents", read, slows down any rot between the deck and joist. If the reeds are placed up moisture will sit in the grooves and allow greater moisture penetration as it has to evaporate rather than run off.

    I believe that people fit the decks with the reed side up to supposedly give greater grip, read anti slip. Looking at it logically, as the reeds are rounded and not sharp, there is less surface area between any footware and the surface, therefore a greater potential for slip.

    Also be aware, should you paint or stain the deck in very dark colours and should the deck be in the sun, that the timber will expand and contract to a greater extent with dark colours. This leads to cracking of the surface allowing moisture to penetrate quicker than if lighter shades were used.

    just a thought.
    Regards,
    Bob

    Absence of evidence is not evidence of absence.

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