1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Oak beam - finishing and fitting

Discussion in 'Wood / Woodwork / Carpentry' started by Bilabong007, 28 Nov 2014.

  1. Bilabong007

    Bilabong007

    Joined:
    25 Apr 2007
    Messages:
    214
    Thanks Received:
    26
    Location:
    Glasgow
    Country:
    United Kingdom
    Hi,

    I was wondering if you could help as I bought a solid oak beam for a matle piece shown here

    I need to stabilise the bark front as it's quite fragile. Was thinking wet rot hardener or the likes. Any thoughts on this?

    Was going to use osmo oil on the grain faces / maybe with a stain depending on what the missus wants. Sound ok?

    It's about 20kg and needs drilled etc for concealed brackets. I like the rod type ones which just need a plug at the back and single hole drilled in the beam. Think 6 or so would hold it? Maybe a diff fixing?

    Any help much appreciated as I don't want to mess up a nice bit of wood.

    Cheers

    Graeme
     
  2. Sponsored Links
  3. AronSearle

    AronSearle

    Joined:
    18 Nov 2011
    Messages:
    3,770
    Thanks Received:
    197
    Location:
    Buckinghamshire
    Country:
    United Kingdom
    Is it green or air dried?

    I assume not kiln dried. Looks like it has insect holes, which would be normal for a bit of hardwood with bark still on. So don't be suprised if more insects eat away at the sapwood if it hasnt been kiln dried to kill them off.

    Bark doesnt shrink, timber does, so there is always a risk of the bark becoming loose. Any clear hardening agent, PVA or varnish will help to protect it a little, and some of this will absorbe into the bark and help bond it.

    The shelving brackets you are thinking of typically take about 15kg, how many will depend what you are putting on the shelf.

    You can stagger them in height along the beam, rather than being in a line, this will make them work more in sheer and less in bending (less likely to get wobbly or sagging shelf).
     
    • Thanks Thanks x 1
  4. Bilabong007

    Bilabong007

    Joined:
    25 Apr 2007
    Messages:
    214
    Thanks Received:
    26
    Location:
    Glasgow
    Country:
    United Kingdom
    Hi,

    Drying method not specified, but I think it's air dried. He did mention the odd wood louse might appear :eek:

    Will try rot hardener on another bit of firewood oak and see what happens to the bark.

    It won't ever need to hold much weight, just my wallet and specs. I'm Scottish so my specs are heavier

    Great idea on the fixings, thanks for that!

    Graeme
     
  5. foxhole

    foxhole

    Joined:
    14 Mar 2006
    Messages:
    17,976
    Thanks Received:
    2,060
    Location:
    Kent
    Country:
    United Kingdom
    It will shrink in the home, by at least 20mm so needs to sit in the house for a few months or it will show all you fixings and move away from the wall.
     
    • Thanks Thanks x 1
  6. Bilabong007

    Bilabong007

    Joined:
    25 Apr 2007
    Messages:
    214
    Thanks Received:
    26
    Location:
    Glasgow
    Country:
    United Kingdom
    As much as 20mm!

    Any way to compensate for this in the fixings? I mean I'm sure I could wait a few months but not sure she could. Was expecting to drill it Sunday...

    If I finish all grain sides with osmo, will it still go that far and fast? Worried now

    Any way to fix it then reposition when it shrinks?

    Graeme
     
  7. foxhole

    foxhole

    Joined:
    14 Mar 2006
    Messages:
    17,976
    Thanks Received:
    2,060
    Location:
    Kent
    Country:
    United Kingdom
    I used oak sleeper to make a coffee table, had to reshape after 6months and a years later due to shrinkage. Cut 20mm of the legs to accommodate a shrunken top.
     
  8. AronSearle

    AronSearle

    Joined:
    18 Nov 2011
    Messages:
    3,770
    Thanks Received:
    197
    Location:
    Buckinghamshire
    Country:
    United Kingdom
    It will shrink by about 5% on the cross section, but not in length. A piece that size will take over a year to dry.

    If the fixings are central the shrinkage won't matter much. If the fixings are at different points in the width they will need to be slotted.
     
  9. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
  10. Sponsored Links
Loading...

Share This Page