"charlie" wrote in message
...


but for shelving purposes, almost all float is interchangable.

regards,
charlie
http://glassartists.org/ChaniArts

Slightly OT, but of interest, I bet:

Long, long ago in this NG, there was a discussion about where to
locate lifting straps to hoist a flat panel. It was one of the
better discussions I can recall, and brought out some of the best
of the engineering types from even other NGs to get an answer. I
even passed along the discussion to a nephew, who worked for a
concrete panel company. What I remember most was to "lift on the
5ths." In other words, you divided the panel (or shelf or
retaining wall etc) into 5 parts, using 4 lines and then support
it at the first points in from the end. It assumes that the panel
is of uniform thickness and strength. It's counterintuitive in
many respects, but recognizes that the interior sections lend some
mutual support and also the outer panels "lift" as they pivot
around the point of attachment.

I assume that this would also apply to an UNLOADED glass, wood or
shelf of other material. Of course, with an uneven distribution
of load, such as a big weight in the center, this might not be
correct.

YMMV and also this is based upon my poor, addled brain thinking
back many years.

--
Nonny

ELOQUIDIOT (n) A highly educated, sophisticated,
and articulate person who has absolutely no clue
concerning what they are talking about.
The person is typically a media commentator or politician.