Check out Section 2315.5.3 for the 4'-0" requirement which applies "except
at boundaries and changes in framing where minimum sheet dimension shall be
24 inches unless all edges of the undersized sheets are supported by framing
members or blocking." Note that your inspector is wrong in that the 11"
sheet is undersized even if blocked. However, your recommendations do meet
Bill Cain, S.E.
From: Bill Allen [SMTP:Bill(--nospam--at)AllenDesigns.com]
Sent: Friday, January 14, 2000 1:32 PM
Subject: Shear Wall Lengths
I got a comment today that I've never heard of before.
I have a project under construction which includes plywood shear
inspector has directed the framer that the shear wall panels are to
in length with the only exception being the last panel. In other
the shear wall length is 24'-11" long, he is to use six 4'-0" panels
panel 11" long. Of course, I thought this would be something similar
horizontal diaphragms where we like to see a minimum panel length of
so I instructed the framer to use five 4'-0" panels, one 2'-0" panel
2'-11" panel. The inspector said that I would have to write a letter
that it is O.K. to use a panel "in the field" less than 4'-0" in
Is there ANYTHING in the UBC that states shear wall panels must be
length? I think a 11" long panel is a bad idea, although I have not
able to find anything in the code that specifies the length of the
(even the 2'-0" requirement).
Bill Allen, S.E.
Laguna Niguel, CA