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one-man stone

Stone Conversations : Archive 12 : Message 00370

From: Norman Watts <norman_watts@zzzzzzz>
Date: Tue, 25 Jul 2006 08:40:45 -0400
Subject: one-man stone

I learned a quant expression recently; the approximate size of stones
being referred to as half-man stone, one-man stone, two-man stone,
etc. I've heard the expression applied to the size of rip rap, but I
think it actually has a nautical origin (ballast maybe?). A one-man
stone is about 100 lbs, but I've also seen it described as what one
man can move with an 8-foot crowbar, supposedly about 300 lbs. So its
a pretty variable measure. Anyone know more about it?

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