Unistrut P4100 - 1-5/8" x 13/16", 14 Gauge Metal Framing Channel


Elements of Section - P4100
Area of Section 0.290 in2 (1.9 cm2)
Axis 1-1 Axis 2-2
Moment of Inertia (I)
0.026 in4 (1.1 cm4)
0.107 in4 (4.5 cm4)
Section Modulus (S)
0.054 in3 (0.9 cm3)
0.132 in3 (2.2 cm3)
Radius of Gyration (r)
0.298 in (0.8 cm )
0.609 in (1.5 cm )

Raw steel conforms to the following ASTM specifications:

GAUGE FINISH ASTM NO.
12
GR & HG
A1011 SS GR 33
PG
A653 GR 33
14
GR & HG
A1011 SS GR 33
PG
A653 GR 33
16
GR & HG
A1011 SS GR 33
PG
A653 GR 33
19
GR
A1008

GR = Perma-Green® III
PG = Pre-Galvanized Zinc
HG = Hot-Dipped Galvanized

 

Part No. Finish Length (ft) Weight Per Foot
P4100-10-GR
Perma-Green® III
10'
0.980 lbs.
P4100-20-GR
Perma-Green® III
20'
0.980 lbs.
P4100-10-PG
Pre-Galvanized Zinc 
10'
0.980 lbs.
P4100-20-PG
Pre-Galvanized Zinc 
20'
0.980 lbs.
P4100-10-HG
 Hot-Dipped Galvanized 
10'
1.028 lbs.
P4100-20-HG
 Hot-Dipped Galvanized 
20'
1.028 lbs.
P4100-10-ZD
Perma-Gold™
10'
0.980 lbs.
P4100-20-ZD
Perma-Gold™
20'
0.980 lbs.
P4100-10-PL
Plain 
10'
0.980 lbs.
P4100-20-PL
Plain 
20'
0.980 lbs.
P4100-10-SS
Stainless Steel (304)
10'
0.980 lbs.
P4100-20-SS
Stainless Steel (304)
20'
0.980 lbs.

View the Unistrut Finish Specifications PDF for detailed specifications on all finishes.

GR = Perma-Green® III
PG = Pre-Galvanized Zinc
HG = Hot-Dipped Galvanized
ZD = Perma-Gold™
PL = Plain
SS = Stainless Steel (304)

Column Loading - P4100
Unbraced
Height
(in)
Allowable
Load at
Slot Face
(lbs)
Max Column Load
Applied at C.G.
K=0.65
(lbs)
K=0.80
(lbs)
K=1.0
(lbs)
K=1.2
(lbs)
24 1,840 5,610 5,210 4,570 3,850
36 1,640 4,660 3,850 2,800 1,960
48 1,310 3,490 2,480 1,590 1,100
60 1,000 2,400 1,590 * *
72 770 1,670 1,100 * *

*KL/r > 200
See notes below for more information

Beam Loading - P4100
Span
(in)
Max
Allowable
Uniform
Load
(lbs)
Defl at
Uniform
load
(in)
Uniform Loading
at Deflection
Lateral
Bracing
Reduction
Factor
Span
/180
(lbs)
Span
/240
(lbs)
Span
/360
(lbs)
24 450 0.11 450 420 280 1.00
36 300 0.24 250 190 130 0.98
48 230 0.44 140 110 70 0.94
60 180 0.67 90 70 50 0.91
72 150 0.96 60 50 30 0.89
84 130 1.32 50 30 20 0.86
96 110 1.67 40 30 20 0.84
108 100 2.16 30 20 10 0.82
120 90 2.67 20 20 10 0.80
144 80 4.09 20 - - 0.76
168 60 4.88 - - - 0.73
192 60 7.28 - - - 0.69
216 50 8.64 - - - 0.65
240 50 11.85 - - - 0.61

See notes below for more information

Notes:

1. Beam loads are given in total uniform load (W Lbs) not uniform load (w lbs/ft or w lbs/in).

2. Beam loads are based on a simple span and assumed to be adequately laterally braced. Unbraced spans can reduce beam load carrying capacity. Refer to the linked page for reduction factors for unbraced lengths from 2 to 20 feet.

3. For pierced channel, multiply beam loads by the following factor:

  • "KO" Series .......95%
  • "T" Series ..........85%
  • "HS" Series .......90%
  • "SL" Series ........85%
  • "H3" Series ........90%
  • "DS" Series ........70%
  • 4. Deduct channel weight from the beam loads.

    5. For concentrated midspan point loads, multiply beam loads by 50% and the corresponding deflection by 80%. Follow this link for information regarding other load conditions.

    6. All beam loads are for bending about Axis 1-1.

    Sample calculation #1:

    Here is a sample calculation to demonstrate the beam loading charts, and the load reduction factors.

    Say we have an 6’ span of P1000sl, and want to see what the load capacity is for a point load.

    Per the charts, P1000 is good for a maximum allowable uniform load (not load per foot) of 560 lbs. In referencing the notes below, we have the following load reductions:

    - X .85 for the sl

    - X .5 for a point load in the center

    - X .78 load reduction per page 56

    Therefore 560 lbs x .85 x .5 x .78 = 185 lbs.

    Sample Calculation #2.

    Say we have a 5’ span of P1001, and want to see the load capacity for a point load.

    Per the charts, p1001 is good for a maximum allowable uniform load (not load per foot) of 1,910 lbs. In referencing the notes below, we have the following load reductions:

    - X .5 for a point load in the center

    - X .97 load reduction

    Therefore 1,910 lbs x .5 x. 97 = 926 lbs.

    Note that these assume that the strut connection is able to handle the load. It is the responsibility of you and your Engineer to review all calculations and connections, and to verify that all items are installed per Unistrut requirements. Unistrut Service Company takes no responsibility for the misuse of information provided. Local codes may dictate more stringent requirements.

Available Piercings and Combinations
P4100HS P4100SL P4100T

Dimensional Data for Pierced & Slotted Channels:

DS = Double Slotted. Slots are 2-3/4" (70mm) x 7/8" (22mm). 3-1/2"(89mm) on Center with 3/4"(19mm) spacing between slots.
HS = Round Holes on one side. Holes are 9/16" (14mm) in Diameter. 1-7/8" (48mm) on Center.
H3 = Round Holes on all three sides. Holes are 9/16" (14mm) in Diameter. 1-7/8" (48mm) on Center.
KO = Knockouts. Knockouts are 7/8" (22mm) in Diameter. 6" (152mm) on Center.
SL = Long Slots. Slots are 3" (76mm) x 13/32" (10.3mm). 4"(102mm) on Center.
T = Slotted. Slots are 1-1/8" (29mm) x 9/16" (14mm). 2"(51mm) on Center.



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