Unistrut P1100 - 1-5/8" x 1-5/8", 14 Gauge Metal Framing Channel

The P1100 is a 1-5/8" x 1-5/8" Unistrut channel. It is similar in size to the P1000, but with a 14 ga (.075") wall.

Resources

• P1100 Submittal PDF
• Related Channel Nuts
• Aluminum and Stainless Steel PDF
• Complete Unistrut Catalog

Elements of Section - P1100
Area of Section	0.418 in2 (2.7 cm2)
	Axis 1-1	Axis 2-2
Moment of Inertia (I)	0.145 in4 (6.0 cm4)	0.176 in4 (7.3 cm4)
Section Modulus (S)	0.162 in3 (2.7 cm3)	0.217 in3 (3.6 cm3)
Radius of Gyration (r)	0.589 in (1.5 cm )	0.650 in (1.7 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
P1100-10-GR	Perma-Green® III	10'	1.420 Lbs.
P1100-20-GR	Perma-Green® III	20'	1.420 Lbs.
P1100-10-PG	Pre-Galvanized Zinc	10'	1.420 Lbs.
P1100-20-PG	Pre-Galvanized Zinc	20'	1.420 Lbs.
P1100-10-HG	Hot-Dipped Galvanized	10'	1.484 Lbs
P1100-20-HG	Hot-Dipped Galvanized	20'	1.484 Lbs
P1100-10-ZD	Perma-Gold™	10'	1.420 Lbs.
P1100-20-ZD	Perma-Gold™	20'	1.420 Lbs.
P1100-10-PL	Plain	10'	1.420 Lbs.
P1100-20-PL	Plain	20'	1.420 Lbs.
P1100-10-SS	Stainless Steel (304)	10'	1.420 Lbs.
P1100-20-SS	Stainless Steel (304)	20'	1.420 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 - P1100
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	2,800	8,040	7,330	6,360	5,430
36	2,410	6,480	5,430	4,190	3,210
48	1,940	4,990	3,830	2,760	2,160
60	1,550	3,740	2,760	2,050	1,640
72	1,290	2,860	2,160	1,640	1,320
84	1,100	2,310	1,780	1,370	1,110
96	950	1,950	1,520	1,180	950
108	840	1,690	1,320	1,030	*
120	760	1,490	1,180	*	*
144	630	1,210	950	*	*
*KL/r > 200 See notes below for more information

Beam Loading - P1100
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	1,350	0.06	1,350	1,350	1,350	1.00
36	900	0.13	900	900	700	0.89
48	680	0.23	680	590	400	0.78
60	540	0.36	510	380	250	0.68
72	450	0.51	350	260	180	0.59
84	390	0.70	260	190	130	0.52
96	340	0.92	200	150	100	0.47
108	300	1.15	160	120	80	0.43
120	270	1.42	130	90	60	0.40
144	230	2.09	90	70	40	0.36
168	190	2.75	60	50	30	0.32
192	170	3.67	50	40	-	0.30
216	150	4.61	40	30	-	0.28
240	140	5.90	30	-	-	0.26
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
P1100HS	P1100KO	P1100SL	P1100T

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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