2 PLY FLOOR TRUSS CONNECTION DETAIL
March 4, 2013
ST-2PLY_SCREW-EWP
MiTek USA Inc.
R
REFER TO INDIVIDUAL TRUSS DESIGN
FOR PLATE SIZES AND LUMBER GRADES
MiTek USA, Inc.
MITEK TRUSSLOK-EWP 6-3/4" SCREWS
MAX. CONCENTRATED LOAD
AS PER CHART BELOW
MAX. UNIFORM LOAD
AS PER CHART BELOW
7 SCREWS IN TOP CHORD @ 4" o.c.
SCREWS IN VERTICAL WEB @ 4" o.c.
AND 6" END DISTANCE
TOP CHORD SCREW SPACING PER CHART BELOW
MAX. CONC. LOAD (LBS) FOR 1 VERTICAL
TRUSS
DEPTH
TOP CHORD
SCREW
SPACING
MAX. GIRDER LOAD ALONG TOP
CHORD (PLF)
# SCREWS PER
VERTICAL
SP or DF
0-9-4
0
4620
4060
0-4-0
1980
1740
1-0-0
0
4620
4060
0-6-0
1320
1160
1-2-0
0
4620
4060
0-10-0
792
696
1-4-0
1
5280
+ 660
4640
+580
1-0-0
660
580
1-6-0
1
5280
+ 660
4640
+580
1-4-0
495
435
1-8-0
2
5940
+ 1320
5220
+1160
1-6-0
440
386
1-10-0
2
5940
+ 1320
5220
+1160
1-8-0
396
348
2-0-0
3
6330
+ 1710
5292
+1232
2-0-0
330
290
EACH ADDL.
VERTICAL
SPF or HF
0-3-8
EACH ADDL.
VERTICAL
SP or DF
SPF or HF
0-1-8
0-0-12
0-3-8
CONNECTION DETAIL
HEADS CAN BE COUNTERSUNK FLUSH
WITH SURFACE OF THE LUMBER.
GENERAL NOTES AND SPECIFICATIONS
1)
2)
3)
4)
5)
6)
7)
8)
9)
MIN. END DISTANCE OF 6" IN ALL MEMBERS.
GAP BETWEEN TRUSS PLY's SHALL NOT EXCEED 1/8"
SCREW HEADS TO BE ON LOADED FACE.
PRE DRILL ANY SCREW THAT GOES THROUGH A PLATE
SCREWS SHALL NOT BE INSTALLED IN AREAS WHERE LUMBER WANE EXCEEDS 1/4"
CONCENTRATED LOADS TO BE APPLIED AT TRUSS PANEL POINT WITH VERTICAL WEB.
SCREW LOCATIONS MAY BE ADJUSTED UP TO 3" TO AVOID OTHER HARDWARE OR LUMBER DEFECTS.
SHEATHING SHALL BE MECHANICALLY ATTACHED TO EACH TRUSS TOP CHORD WITH FASTENERS AT 12" O.C. MAX..
MAXIMUM 5 VERTICAL WEBS FOR CONCENTRATED LOAD PLY TO PLY TRANSFERS
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