Technical Specifications

22
Fasteners
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N / NA Nails
Optional Nails for Face Mount Hangers
(excludes slant nail hangers)
Left skew
Drive nails at angle
Right skew
Slant Nailing
via dimple
nail holes
Seat Cleat
®
helps
lock I-Joist into
place for positive
seating and
nailing ease
Diamond holes
(no need to ll unless
otherwise noted)
Round Holes:
Always ll all (normal-size)
round nail holes, unless
otherwise noted.
Diamond Holes:
For maximum listed capacity.
When there are MIN and MAX values:
MIN: ll all round nail holes
MAX: ll all round and diamond holes
Large Round Holes:
For concrete/masonry installation;
no need to be lled when connected
to wood.
Obround Holes:
For ease of nailing at a tight location;
always ll.
Dimple Holes:
Guide double shear
nails into the joist
and header at a 30°
to 45° angle
Use specified standard length
common nails. 16d common
and 10d common nails are 3-1/2"
and 3" long respectively.
Bend-line
Holes
Typical I-Joist Nailing
Do not nail
through the
Seat Cleat
®
Common Nailing Errors
Wrong Angle
When a nail is driven into the bottom ange
of the wood I-Joist parallel to the glue lines,
separation of veneers can occur which
substantially reduces the design loads of
the connection.
Nail Too Long
When using nails longer than USP’s
recommended nails, bottom ange splitting
may occur. Also, this can raise the wood
I-Joist off the seat, resulting in uneven
surfaces and squeaky oors along with
reduced factored resistance.
Drive bend line nails into header at
45º to achieve published strength
Fasteners