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Thread: Timber Post (Internal)
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11th November 2011, 02:17 PM #1New Member
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Timber Post (Internal)
Hi all, quality forum you have here many of my google searches pointed me to this site over and over again.
I’m after a recommendation of what wood I should use for a internal timber post.
I’m doing a kitchen renovation which includes knocking a load bearing wall down, being from a engineering background I have designed the new roof beams I’m going to install but I need to install a post, initially I was thinking of steel but now have decided that a feature timber post (doubles as a structural post) is the way to go.
For visual aspect we are going to use 150x150 post
Initially I was thinking of grey ironbark but after talking with some timber suppliers they said it will likely develop splits as it dries.
I have been told to use Merbau (kwila) as it is less likely to split if at all, they didn’t go on to tell me that it does bleed a lot something I have read over the net. Being as its internal and in sight is the sap something I can control with a varnish or timber oil?
I have also read good things about Northern Box and Spotted Gum
I want to use a hardwood as it will be fixed below my timber floor to a pad footing and being near Adelaide we have termites everywhere (good thing my house is double brick). So a class 1 above ground timber is preferred so if termites do make their way to it they will be less likely to attack it.
I will use some kind of termite barrier/sleeve to help protect it (any ideas of what base mounting bracket I should use would be great)
Thanks for any helpful advice.
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11th November 2011, 02:59 PM #2GOLD MEMBER
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internal post
Merbau should be OK inside? But it is a dark brown, as it jarrah.
What colour are you after?
Light: blackbutt or tallowood or white mahogany
Red: Red mahogany or red gum, or even bluegum or rosewood or red cedar
Light brown: ironbark, greygum,
pink: flooded gum
Best termite wise is red mahogany I think, but if you aren't placing in the ground, any timber should be OK
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11th November 2011, 03:45 PM #3New Member
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We don't really want anything to red, dark brown is what we'd like.
Thats sort of why I was looking at Merbau, Spotted Gum or Northern Box.
Just don't really know how many problems they are going to give me with splitting and bleeding
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11th November 2011, 04:32 PM #4SENIOR MEMBER
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Nrb
As you say termites are a worry for you have considered useing steel all the way down to your footing and then boxing it in with some timber,say tassie oak and staining that to your likeing
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11th November 2011, 04:43 PM #5GOLD MEMBER
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merbau
merbau won't split and it will only bleed if wet, if inside it should be fine unless in an area where steam may condense. it is fire rated, don't know about termites. What about jarrah?
Merbau is from PNG.
Spoted gum is not really dark brown, more light coloured
Greg
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11th November 2011, 05:01 PM #6GOLD MEMBER
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If you want to make a feature of the post you would go dark. If you want it to fade into the background go light. As you prefer browns to reds look at Tallowwood, White mahogany, Turpentine, Blackbutt, Spottedgum. Speed of drying will determin the amount of surface checking. Fuel fires and air conditioning can wreak havock. Tallow wood or turpentine are probably the most stable.
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11th November 2011, 07:24 PM #7New Member
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I'm hoping to get to a timber yard that has a variety of hardwoods over the next week or so then I'll be able to get a look at what is around locally and get a better feel for timber colours.
Colours must vary a lot depending how green the timber is, I'll have to trust the advice I get from the person trying to sell it to me.
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11th November 2011, 09:20 PM #8Retired
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I would look at Murray pine or Cypress pine as well.
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11th November 2011, 09:28 PM #9
have you thought about south aust blue gum ( Eucalyptus leucoxylon ) not quite as dark as red gum - jarrah, Structuraland local.
Mobile Sawmiller
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11th November 2011, 10:40 PM #10
Merbau (or Kwilla or Vesi depending on where you come from) is fine indoors. I built my bed from it, amongst other things. See here for my bed, the posts are solid 130x130.
Neil____________________________________________Every day presents an opportunity to learn something new
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12th November 2011, 08:53 PM #11
I did a vanity & some panelling around the bath, in Kwila - didn't know about its little trick when wet - found out about that when it was used for the railing on the deck, & we had a big storm the day the rails were installed. 'Bleeding' is an understatement - this stuff gushes!
The vanity & panelling were all well-coated in poly, and gave no trouble whatever despite heavy use of that bathroom by 4 offspring, so I would think it should be perfectly safe in the kitchen if coated with something suitable. It's a nice wood, but there are plenty of suitable local species, too, as suggested....
Cheers,IW
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