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Tree Ratings in kN

At one of the American Mountain Guides Association Single Pitch Instructor Provider continuing education programs, we discussed the strength of trees. One SPI provider noted that he had pull tested a tree to failure with a load cell and found that the tree had a 17kN value.17kN is a decently high value. A kilonewton (kN) is worth approximately 225lbs. And most carabiners and slings are rated at 21-24kN.
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