General Climbing Discussion

Topic	Date	User
Anchoring a top rope at home	14-Apr-2009 At 10:49:38 PM	lacto
Message
if you are going to specify timber how about sizes that actually exist 100x50 is actually 90x45 and a F rating F5 F7 OR F11 would be the three readily available sizes in pine kd hardwood is also well under 100X50 but rate f 17 to f34 the F relates to the extreme fibre stress in MPa so f34 is aout 7 times stronger than F5 or 3 times f11 Most timber has the f rating printed on it

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