Technical Specifications

223
General Hardware
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O / N Bridging
O
Typical O installation
Typical N installation
All models require (2) 8d (0.131") x 1-1/2 nails at
each end.
1) Based on 1-1/2" joist. Consult USP for suitable
product for wider joists.
O – The O series spans three joists in under/over installation. Prong teeth
in the center help reduce nailing.
N – The N series spans two joists per unit. Can be used for bridging or
bracing I-Joists. See chart.
Materials: See chart
Finish: G90 galvanizing
Codes: See page 11 for Code Reference Chart
Installation:
• Use specied fasteners in models with fastener requirements.
• For all models – Bridging should be installed on oor joists with a nominal
depth-to-thickness ratio of 5 to 6 or more (2012 National Design Specication
for Wood Construction; Section 4.4.1). Bridging units should be installed in pairs
at intervals of 8' or less. Bridging pairs should form an “X” between joists; leave
a slight space between the units to avoid noise-generating contact. Follow
specic installation instructions below for particular models.
• Install prior to suboor sheathing. Use (2) 8d x 1-1⁄2" nails at each end. Fully seat
nails to avoid any movement against the bridging and subsequent oor noise.
Joist Installations
Ref. No. W L Qty Type
N16 LTB20, TB20 22 3/4 19-3/4 4 8d x 1-1/2 16
N27 TB27 20 3/4 26-13/16 4 8d x 1-1/2 -- --
N30 TB30 20 3/4 29-13/16 4 8d x 1-1/2 -- --
N36 TB36 20 3/4 35-13/16 4 8d x 1-1/2 -- --
N42 TB42 20 3/4 42 4 8d x 1-1/2 -- --
N48 TB48 20 3/4 48 4 8d x 1-1/2 -- --
N54 TB54 20 3/4 54 4 8d x 1-1/2 -- --
N56 TB56 20 1 56 4 8d x 1-1/2 -- --
N60 TB60 20 1 60 4 8d x 1-1/2 -- --
O16 -- -- 18 1 44 4 8d x 1-1/2 16 120
O40 LTB40 22 3/4 39-3/4 4 8d x 1-1/2 16
15, R14, F8
1) For joist spacing, refer to the Joist Installation chart.
2) Joist spacing is based on a 1-1/2" joist. Consult USP regarding wider joist applications.
3)
NAILS:
8d x 1-1/2" nails are 0.131" dia. x 1-1/2" long.
New products or updated product information are designated in
blue font
.
15,
R14,
F8
Joist
Spacing
O.C. (in)
Dimensions (in)
USP
Stock No.
Steel
Gauge
Fastener Schedule
1
Code
Ref.
12" 16" 19.2" 24" 30" 32" 36" 42" 48"
7-1/4 -- --
N16/O16
/O40
-- -- -- -- -- -- -- -- -- -- -- -- -- --
9-1/4 N16
N16/O16
/O40
N27 N27/N30 N36 N36/N42 N42 N48 N54/N56
9-1/2 N16 N16 N27 N27/N30 N36 N36/N42 N42 N48 N54/N56
10 N16 N16 N27 N27/N30 N36 N36/N42 N42 N48 N54/N56
11-1/4 N16 N16 N27 N30 N36 N36/N42 N42 N48 N54/N56
11-7/8 N16 N27 N27 N30 N36 N36/N42 N42 N48 N54/N56
12 N16 N27 N27 N30 N36 N36/N42 N42 N48 N54/N56
14 N16 N27 N27/N30 N30 N36/N42 N36/N42 N42 N48 N54/N56
16 N27 N27 N27/N30 N30 N36/N42 N42 N42/N48 N48/N54 N54/N56
18 N27 N27/N30 N30 N36 N36/N42 N42 N42/N48 N48/N54 N54/N56
20 N27/N30 N27/N30 N30 N36 N42 N42 N42/N48 N48/N54 N54/N56/N60
22 N27/N30 N30 N36 N36/N42 N42 N42/N48 N48 N54/N56 N54/N56/N60
24 N30 N36 N36 N36/N42 N42 N42/N48 N48 N54/N56 N56/N60
26 N30/N36 N36 N36/N42 N42 N42/N48 N48 N48/N54 N54/N56 N56/N60
28 N36 N36/N42 N36/N42 N42 N42/N48 N48 N48/N54 N54/N56 N60
30 N36/N42 N36/N42 N42 N42/N48 N48 N48 N48/N54/N56 N54/N56/N60 N60
32 N36/N42 N42 N42 N42/N48 N48 N48/N54 N54/N56 N54/N56/N60 N60
All models require (2) 8d (0.131") x 1-1/2 nails at each end.
1) Based on 1-1/2" joist. Consult USP for suitable product for wider joists.
Sized for Joist-to-Joist X Bridging
Joist Spacing
1
I-Beam
Height (in)
General Hardware
L
W
N
L
W