Jan 2014, Pa ge, Canadian installation instructions – Georgia-Pacific Engineered Lumber Canada User Manual
Page 8
8
GeorGia-Pacific Wood Products
JaN 2014
caNadiaN iNstallatioN iNstructioNs
Pa
Ge
Flange
Joist
Series
Joist
Depth
Filler
Depth
Filler
Thickness
Width
2
½
"
WI 40, WI 60
WI 40, WI 60
WI 40, WI 60
WI 40, WI 60
WI 80
WI 80
WI 80
WI 80
9
½
9
½
"
11
7
/
8
"
2
1
/
8
"
3
1
/
8
2
1
/
8
"
3
1
/
8
2
1
/
8
"
3
1
/
8
2
1
/
8
"
3
1
/
8
"
"
"
"
6"
8"
10"
12"
6"
8"
10"
12"
14"
16"
3
½
"
11
7
/
8
"
"
14"
16"
Figure A
Rim Board, or wood structural
panel closure ( " min.
thickness), attach per Detail 1B
Alternate Method 2
Double I-Joist
2'- 0"
max.
12"
4'- 0"
min.
Notes:
1. Support back of I-Joist web during nailing to prevent damage
to web / flange connection.
2. Leave a
1
⁄
8
" gap between top of filler block and bottom of top
I-Joist flange.
3. Filler block is required between joists for full length of span.
4.
5. Where discrete BACKER blocks are used for side-applied point loads (see detail 1H), and the
remaining length of a 2-ply I-Joist girder is top-loaded, the FILLER block need not be continuous.
Install minimum 3-1/2" long FILLER blocks at maximum 4' o.c. spacing using a minimum of (six)
nails from each face.
See cantilever reinforcement table for appropriate reinforcement method.
Table A
+
+
+
+
( ) designates nails from near face
(
+
) designates nails from far face
Legend
Attach I-Joists to top plate
at all supports per Detail 1B
3½" min. bearing required
Blocking panel or Rim Board
blocking, attach per Detail 1G
See double I-Joist construction
detail - Figure A
Block I-Joists together with
filler blocks for the full
length of the reinforcement.
For I-Joist flange widths
greater than three inches
place an additional row
of 10d nails along the
centerline of the reinforcing
panel from each side.
Clinch when possible.
Filler blocking per
Table A
1
/
8
" gap
between top
flange and
filler block
Offset nails
from opposite
face by 6"
23
/
32
Nail joists together with two rows of 10d nails at 12” o.c. (clinched when possible on each
side of the double I-Joist). A total of four nails per foot is required. If nails can be clinched,
only two nails per foot are required.
cantilever details (continued)
cantilever detail for vertical building offset
Filler block requirements for
double joist Construction
double joist Construction