Georgia-Pacific Engineered Lumber Canada - Manual (Page 7)

7 JAN 2014
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cANAdiAN iNstAllAtioN iNstructioNs georgiA-pAcific Wood products
Cantilever framing details
cantilever detail for balconies lumber dantilever detail for balconies
L/4
4' max.,
where L is
joist span
L
4' max.,
where L is length
of cantilever
1½" x L
4' min.
CAUTION: Cantilevers
formed this way must be
carefully detailed to prevent
moisture intrusion into the
structure and potential
decay of untreated
I-Joist extensions.
3½" min. bearing required
Rim Board,
or wood
structural panel
I-Joist or
rim board
Cantilever extension supporting
uniform floor loads only Attach I-Joists
to plate at all
supports per
Detail 1B
Blocking panel
or Rim Board
blocking, attach
per Detail 1G
Rim Board or wood structural panel
closure ( " min. thickness),
attach per Detail 1B
3½" min.
bearing required
Use same installation as Method 1 but
reinforce both sides of I-Joist with sheathing
Use nailing pattern shown
for Method 1 with opposite
face nailing offset by 3"
6"
8d nails
Attach I-Joist
to plate per
Detail 1B
Method 2
Sheathing Reinforcement Two Sides
Method 1
Sheathing Reinforcement One Side
Strength axi
s
Strength
axis
2'- 0"
max.
2'- 0"
min.
2 x 8 min. Nail to backer block and joist with
two rows of 10d nails @ 6" o.c. and clinch.
(Cantilever nails may be used to attach
backer block if length of nail is sufficient
to allow clinching.)
Cantilever
extension
supporting
uniform
floor loads
only
Full depth backer block with 1 / 8
" gap between block and
top flange of I-Joist. See Detail 1H. Nail with two rows
of 10d nails @ 6" o.c. and clinch.
I-Joist or Rim Board
3½" min. bearing required
Lumber or wood
structural panel
closure
Attach I-Joists
to plate at all
supports per
Detail 1B
See cantilever reinforcement table for appropriate reinforcement method.
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cantilever detail for vertical building offset