The following website gives the weight of seasoned dry oak in kg per cubic
Should be easy to work out the total weight of your beam from that, and in
my opinion each adult should be safe to carry up to 25kg each providing they
are physically fit, but I would half that for lifting, putting down and any
back twisting manoeuvres.
Google for oak + weight +cuft gets:
"The weight of dry, seasoned Oak depends on it's type (English Oak, Red
Oak Cork Oak etc), but will be in the range of 590 to 930 kg/cubic
metre. This is an enormous variation, but there are lots of varieties.
If you know the specific type of Oak you are working with, the answer
can be more precise."
Based on that it should weigh between 165 & 260kg which suggests 2-4
people with the lift being carried out in stages at alternate ends with
ironmen* to support between lifts.
Try to lift one end yourself and you'll know whether it is a 2 or 4 man
*or is it strongboys, y'know, the heavy duty, metal, adjustable height
Many thanks for the info, very important point about twisting manoeuvres.
Not the sort of shape one can lift with legs doing the lifting, means
bending over to hold it in middle etc, even for guys at the ends. Not good
at all, certainly for just two.
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