1995 SMACNA PER TABLE 1-5
WITH TIE-ROD OPTION
SNAPLOCK SEAM CONSTRUCTION
|
DUCT SIZE
|
GALV GUAGE
|
SMACNA
CODE
|
JOINT
CONNECTION |
FINISHED
LENGTH |
SINGLE
REINFORCEMENT |
DOUBLE
REINFORCEMENT |
0"-10"
|
26
|
|
SD |
59" |
|
|
11" - 14"
|
26
|
B
|
SSD-26GA |
59" |
|
|
15" - 20"
|
26
|
C
|
SSD-22GA |
59" |
|
|
21" - 26"
|
26
|
D
|
SSD-20GA |
59" |
|
|
27" - 36"
|
26
|
D
|
SSD-20GA |
59" |
CTR |
|
37" - 42"
|
26
|
E
|
BSSD-22GA 1 1/2" x 1/8" BAR |
59" |
CTR |
|
43" - 54"
|
24
|
F
|
BSSD-22GA 1 1/2" x 1/8" BAR |
59" |
CTR |
|
55" - 60"
|
24
|
G
|
BSSD-20GA 1 1/2" x 1/8" BAR |
59" |
|
DTR |
61" - 84"
|
22
|
I
|
ASSD-20GA 2" x 1/8" ANGLE |
59" |
|
DTR |
85" - 96"
|
20
|
I
|
ASSD-20GA 2" x 1/8" ANGLE |
59" |
|
DTR |
Abbreviations:
SD = FLAT-S & DRIVE
SSD = STANDING-S & DRIVE
BSSD = BAR REINFORCED STANDING-S & DRIVE
ASSD = ANGLE REINFORCED STANDING-S & DRIVE
CTR = CENTER TIE ROD (TUBE WITH THREADED INSERT)
DTR = DOUBLE TIE ROD (TUBE WITH THREADED INSERT)
|