Hi Don,
Great replies. Clearly you have been burning the mid night oil on your researches.
A thought for consideration.
With a spiral whole timber if this comes under significant tension then the tendancy would most likely be for the checks to open up as the timber starts to straighten itself.
Would the opposite be true i.e. if a timber is under compression e.g. a post would this tend to close up its checks and hold itself together as loads increase ?
Regards
Ken Hume
