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Author Topic: Growth Rings, I'll just leave this here.  (Read 1154 times)

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Offline Ianab

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Growth Rings, I'll just leave this here.
« on: January 09, 2018, 04:29:02 AM »
That's a full size 4x2 Radiata Pine.  Actually dried nice and straight, has had a dip in a borate bath, and is now holding up my workshop wall.




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Offline Chuck White

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Re: Growth Rings, I'll just leave this here.
« Reply #1 on: January 09, 2018, 06:35:08 AM »
Wow, that's a lot of growth, about an inch per year! 
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Offline Weekend_Sawyer

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Re: Growth Rings, I'll just leave this here.
« Reply #2 on: January 09, 2018, 06:48:51 AM »
I bet you could just about see that tree growing!
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Offline hunz

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Re: Growth Rings, I'll just leave this here.
« Reply #3 on: January 09, 2018, 08:32:36 AM »
Judging by all the radiata I just installed for trim in my house, that's flat out astonishing! I imagine it was in the middle of a 100 acre field all by itself. Ha
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Offline Darrel

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Re: Growth Rings, I'll just leave this here.
« Reply #4 on: January 09, 2018, 09:08:36 AM »
Somebody imported about 30,000 BF of pine that looked like that from NZ and brought it to the planing mill where I worked.  It was random width 6/4 with the widest being about 24".  I ran it all through that big 14 knife per head Yates American planer, s2s in about 5 hrs.  I think some of the growth rings were even wider than what you have there. 

I couldn't believe how flat and straight it was.
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Offline btulloh

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Re: Growth Rings, I'll just leave this here.
« Reply #5 on: January 09, 2018, 09:18:30 AM »
Pretty amazing.  Jack's beanstalk didn't grow much faster than that.
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Offline ljohnsaw

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Re: Growth Rings, I'll just leave this here.
« Reply #6 on: January 09, 2018, 09:43:52 AM »
I bet you could just about see that tree growing!
I'd think you could *hear* it growing - creaking and groaning! :D
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Offline POSTON WIDEHEAD

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Re: Growth Rings, I'll just leave this here.
« Reply #7 on: January 09, 2018, 10:05:26 AM »
$30
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Offline Darrel

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Re: Growth Rings, I'll just leave this here.
« Reply #8 on: January 09, 2018, 10:45:42 AM »
1992 LT40HD

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Offline brad918

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Re: Growth Rings, I'll just leave this here.
« Reply #9 on: January 09, 2018, 12:50:45 PM »
Impressive growth! Here is the opposite end of the spectrum.

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Online Jeff

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Re: Growth Rings, I'll just leave this here.
« Reply #10 on: January 09, 2018, 01:11:02 PM »
Wow, that's a lot of growth, about an inch per year!

Actually, 2 inches per yer as you are only looking at one side of the tree there.
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Offline YellowHammer

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Re: Growth Rings, I'll just leave this here.
« Reply #11 on: January 09, 2018, 01:27:39 PM »
Some serious steroids going on in that pine. :D
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Offline Darrel

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Re: Growth Rings, I'll just leave this here.
« Reply #12 on: January 09, 2018, 01:49:24 PM »
Impressive growth! Here is the opposite end of the spectrum.

(Image hidden from quote, click to view.)

On the opposite end of the spectrum, I have 6" DABH Pondarosa pine on my property that are over 100 years old.

And FWIW, someone split the pith.  :P
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Offline brad918

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Re: Growth Rings, I'll just leave this here.
« Reply #13 on: January 09, 2018, 02:01:52 PM »
Impressive growth! Here is the opposite end of the spectrum.

(Image hidden from quote, click to view.)

On the opposite end of the spectrum, I have 6" DABH Pondarosa pine on my property that are over 100 years old.

And FWIW, someone split the pith.  :P

What is ment when you say "someone split the pith"?
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Offline Darrel

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Re: Growth Rings, I'll just leave this here.
« Reply #14 on: January 09, 2018, 04:50:52 PM »
Brad, if you look at the picture of the piece of wood you posted, you will notice that the left side of the piece splits the very center of the tree which is called the pith.  The wood near the pith is young or juvenile and shrinks longitudinally or lengthwise when it dries causing the board to warp, twist and otherwise misbehave. 

I made a pair of 16' sled runners that I Had no use for by splitting the pith.

 
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Offline tmbrcruiser

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Re: Growth Rings, I'll just leave this here.
« Reply #15 on: January 10, 2018, 09:21:42 AM »
My home was built in 2000 and during the build I was shown radiata pine doors. To my surprise the wood is very dense and heavy, even though the growth rings were similar to your picture. Is that normal for all radiata pine?
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Offline Ianab

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Re: Growth Rings, I'll just leave this here.
« Reply #16 on: January 10, 2018, 01:40:38 PM »
My home was built in 2000 and during the build I was shown radiata pine doors. To my surprise the wood is very dense and heavy, even though the growth rings were similar to your picture. Is that normal for all radiata pine?

It's pretty normal for NZ grown radiata at least. The growth rate will vary according to the soil and climate of the growing site, so it's not all quite that fast. But normal harvest would be 25-30 years, for trees 2-3ft dbh. The trees have also been selectively bred for years for better form and more stable wood, so they are quite different to the original wild grown trees.
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Re: Growth Rings, I'll just leave this here.
« Reply #17 on: January 10, 2018, 02:37:13 PM »
That is why I dread having to saw 18 year old Plantation SYP.  The growth rings will be up to " and I have to flip the cant after every pass.  Just dreadful stuff.   :-\
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