Posted by jdemaris on November 07, 2010 at 07:52:33 from (72.171.0.143):
I just refreshed my memory, reading a huge study done by our USA Federal government, starting in 1909 and going up the the 1990s. It's amazing how much time and money went into studying fenceposts.
In brief- creosote treated southern yellow pine often lasted 50-60 years. CCA treated southern yellow pine 30-40 years.
Untreated natural woods?
This surprises me since when I first worked for building contractors in the 60s, Redwood was the #1 outdoor wood. According to tests though, it rots fast when in the ground.
Average life of natural fenceposts tested:
Black Locust - 37 years Rocky Mountain Juniper - 37 years Arizona Cypress - 25 years Osage Orange - 25 years Western Red Cedar - 21.3 years Arizona White Oak - 20 years Mulberry - 19 years American Chestnut - 19 years Green Ash - 18.7 years Mesquite - 18 years Northern White Cedar - 15 years White Oak - 10 years Honey Locust - 5 years Redwood - 3.6 years
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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