Iff stiffness is the only consideration and water resistance is not a
factor, then wafer board offers greater stiffness than plywood, not overall
strength, just stiffness.

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Remove the obvious to reply. Experienced and reliable
Concrete Finishing and Synthetic Stucco application in the GTA.
"Joseph Meehan" wrote in message
.. .
Darro wrote:
Can anyone tell me which of two plywood sheet configurations would be
the stiffest, or do they have the same stiffness?

Any other observations about the stiffest configuration of plywood
sheets under 5/8" thickness?

Configuration 1:
A bottom layer of sheets of 1/4" plywood plus a top layer of 1/4"
plywood sheets overlaid in the centre of the lower layer's joints and
glued to the lower layer.

Configuration 2:
A single layer of 1/2" plywood with the same outside dimensions as
Assembly 1.

Thanks in advance for your helpful replies.

Darro

All else being equal a single sheet composed of the same total number
of
layers as two sheets half as thick and having half the total layers as the
single will be stiffer. However that difference is not likely as the
total
number of layers will not likely be equal and you need to consider the
overlap of joints that will add overall application stiffness. In
addition
there are many other factors relating to stiffness.


--
Joseph Meehan

Dia duit