Use and Care Manual

Truss & Rafter
257
Copyright © 2020 MiTek Industries, Inc. All Rights Reserved
Truss & Rafter
MiTek
®
Product Catalog
LUGT Girder Tiedowns
The LUGT series is an adaptable tiedown for girder trusses and offers several
installation options to accommodate different framing conditions. It is an ideal
retrot solution to reinforce truss connections to transfer high wind loads to
supporting walls. Sizes available for 1-ply, 2-ply, 3-ply and 4-ply trusses.
Materials: See chart
Finish: G90 galvanizing
Codes: See chart for code references
Installation:
• Use all specied fasteners. See Product Notes, page 18.
• All fastener holes must be lled with specied fasteners to achieve loads listed in
the chart. Large fastener holes are for concrete/masonry installations (reference
page 253) and do not need to be lled when used for girder-to-stud applications.
• MiTek’s WS structural wood screws are included with LUGT3 and LUGT4.
Typical LUGT2
installation
Typical LUGT1
installation
Typical LUGTC2
corner hip installation
LUGT1LUGTC2
Typical LUGT3 installation
(LUGT4 similar)
Ref. No. Qty Type Qty Type Qty Type
1 LUGT1 H10S 18 8 8d x 1-1/2 8 8d x 1-1/2 7 8d x 1-1/2 1045 600 175 920 470 175 --
LUGT2 LGT2 14 16 10d 2 10d 14 10d 2020 880 495 1780 685 495
LUGTC2 -- 14 16 10d 2 10d 14 10d 2020 -- 455 1780 -- 355
3 LUGT3 LGT3-SDS2.5 12 12 WS25 4 16d Sinker 24 16d Sinker 3500 1980 890 3080 1575 665
4 LUGT4 LGT4-SDS3 12 16 WS3 5 16d Sinker 32 16d Sinker 4725 -- -- 4160 -- --
1
)
Allowable loads have been increased 60% for wind or seismic loads; no further increase shall be
p
ermitted.
2
)
Additional anchora
g
e
p
roducts to be desi
g
ned b
y
others.
3
)
For
p
ro
p
er installation, the number of studs must be e
q
ual-to or
g
reater-than the number of roof truss
p
lies.
4
)
The LUGT1 can be installed with the stud offset from the rafter a maximum of 1"
(
center-to-center
)
for a reduced allowable u
p
lift load of
955-lb
(
DF/SP
)
and 840-lb
(
S-P-F
)
.
5
)
Fasteners must be installed in full
y
g
routed and reinforced concrete masonr
y
(
f'm = 1,500
p
si
)
or reinforced concrete
(
f'c = 2,500
p
si
)
.
6
)
Use DeWalt Screw-Bolt
TM
+ 1/4" dia. x 3" or 3/8" dia. x 5" screw anchors
;
or e
q
ual
,
installed in accordance with manufacturer's s
p
ecification.
7
)
MiTek's WS25 structural wood screws are 1/4" dia. x 2-1/2" lon
g
(
su
pp
lied with LUGT3
)
and WS3 structural wood screws are 1/4" dia. x 3" lon
g
(
su
pp
lied with LUGT4
)
.
8
)
NAILS: 8d x 1-1/2 are 0.131" dia. x 1-1/2" lon
g
, 10d nails are 0.148" dia. x 3" lon
g
, 16d Sinkers are 0.148" dia. x 3-1/4" lon
g
,
New
p
roducts or u
p
dated
p
roduct information are desi
g
nated in blue font.
2
F1
160%
Wood-to-Wood Installation
No.
of
Plies
DF/SP
Allowable Loads (Lbs.)
1
S-P-F
Allowable Loads (Lbs.)
1
Rafter/Truss Plate Stud
Uplift
4
160%
F1
160%
F2
160%
Uplift
4
160%
F2
160%
Fastener Schedule
2,3,7,8
IBC,
FL, LA
--
Code
Ref.
MiTek USP
Stock No.
Steel
Gauge
LUGT4LUGT3
LUGT2
11-1/2"
1-5/8"
5"
3"
12-7/8"
8-7/8"
6-3/4"
3-1/4"
3"
Typical LUGT1
offset stud installation
(See footnote #4)
F1
F1
F2
F2
Uplift
F1
F1
F2
F2
Uplift
F2
F2
Uplift
F1
F1
F2
F2
Uplift
7-3/4"
3-3/16"
14-13/16"
10-13/16"
15-15/16"
11-1/8"
5"
4-3/4"
16-1/8"
12-7/8"
6-9/16"
6-1/4"