9th Jun 2018, 12:40 AM #1
The hardest timber. Global hardness chart
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9th Jun 2018, 01:46 AM #2
Where does this fit in?
Regards from Perth
DerekVisit www.inthewoodshop.com for tutorials on constructing handtools, handtool reviews, and my trials and tribulations with furniture builds.
9th Jun 2018, 02:50 AM #3
it once was wood wood ?
regards from Canada
9th Jun 2018, 04:02 AM #4Senior Member
- Join Date
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- SC, USA
9th Jun 2018, 12:40 PM #5
Here's a link to the chart.
Obviously skewed to the USA market, but that's ok. I wonder how much Gidgee and Spotty they see over there? Spotty may even be growing there, but Gidgee? They've listed "external lumber" as the only use for Spotty, but we all know it has many many more uses than that (and what do they mean by that? Fencing? Cladding?).
No mention of Oregon either.
9th Jun 2018, 06:24 PM #6
Bluegum for fences pallets and construction ??? Pallets ???!!!I'm just a startled bunny in the headlights of life. L.J. Young.
We live in a free country. We have freedom of choice. You can choose to agree with me, or you can choose to be wrong.
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9th Jun 2018, 06:38 PM #7
9th Jun 2018, 08:04 PM #8
But which blue gum did you buy? Sydney blue gum (E saligna) - not mentioned in the above table - has a hardness yanka of around 9 kN (Bootles), whereas Tasmanian blue gum (E globulus) has a yanka of 12 (Bootles).
However, even with E globulus there are essentially three different "types" of blue gum on the market:
- Old growth - Hardness 12 kN - rich dark brown timber,
- Regrowth - Hardness 10.5 kN - slightly lighter colour,
- Plantation - Hardness around 6.5-7 kN - much lighter colour, often similar to mountain ash.
9th Jun 2018, 08:27 PM #9
Don't you mean janka
https://en.wikipedia.org/wiki/Janka_hardness_testThe person who never made a mistake never made anything
9th Jun 2018, 08:28 PM #10
11th Jun 2018, 01:11 PM #11GOLD MEMBER
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11th Jun 2018, 06:44 PM #12
11th Jun 2018, 08:45 PM #13
We here in the west consider Wandoo a hard timber with a Janks of 15.0 according to this http://www.artistictimberfloors.com....ss-Ratings.pdf it shows Bamboo as 14.7 Janka .
I have some Wandoo growing here ,a good chain is required to get through it .Johnno
Everyone has a photographic memory, some just don't have film.
12th Jun 2018, 05:12 PM #14New Member
- Join Date
- Oct 2011
- Shoalhaven Heads NSW
'Oregon', as a species, is short for Oregon Pine. Found this very good info at Wooden Boat forum.
Oregon Pine is Euro (and Brit and Aus) speak for Douglas Fir, Pseudotsuga menziesii.
Prior to its getting parked under its own genus, Pseudotsuga (literally, "false hemlock") back in 1867, it was at various times parked under all of the following genera: Pinus (pines), Picea (spruces), Abies (true firs), Tsuga (true hemlocks), and Sequoia (redwoods).
When I moved here from California in '87 and went to work for Hudson's in Blacktown, I was heartily confused over the Oregon thing, cause I KNEW that most of their 'Oregon' was actually Canadian! Douglas Fir is indeed on that list. Not really very hard at all and with a very unforgiving tendency to splinter. Requires a bit of experience to use in fine woodworking. Old growth, rarely seen, save for recycled, is preferred as most stuff you would get at a timber yard is unseasoned regrowth and very 'bony' in reference to the marked difference in density between early and late wood. Think 20 rings per inch or more for old growth. HEAPS more stable and softer to work. Here's a link to the WIKI page, which is VERY informative.
Hope that helps. Cheers
Born and raised on Douglas Fir and California Redwood
12th Jun 2018, 05:57 PM #15
Actually I didn't know about it being called Oregon Pine (and it's a Fir) but the legend is that some genious called it Oregon because that was what was stamped on it when it arrived here. I've always been amused by the thought of some Aussie going to a lumber yard in the States to purchase some Oregon. "Well hey buddy, just how much money have you got? You want a coupla acres or just a house plot? Not a real friendly climate up there though....."
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