Unistrut P2001 - 1-5/8" x 3-1/4", 16 Gauge, Back-to-Back
Metal Framing Channel

A 1-5/8" x 3-1/4" back-to-back channel, the Unistrut P2001 is similar in size to P1001 but has a 16 ga (.060") wall.

Resources

Specifications
Finish & Length
Availability
Load Charts
Piercings /
Combinations
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Elements of Section - P2001
Area of Section	0.684 in² (4.4 cm²)
Area of Section	Axis 1-1	Axis 2-2
Moment of Inertia (I)	0.618 in⁴ (25.7 cm⁴)	0.302 in⁴ (12.6 cm⁴)
Section Modulus (S)	0.381 in³ (6.2 cm³)	0.372 in³ (6.1 cm³)
Radius of Gyration (r)	0.951 in (2.4 cm)	0.665 in (1.7 cm)

Raw steel conforms to the following ASTM specifications:

GAUGE	FINISH	ASTM NO.
12	GR & HG	A1011 SS GR 33
12	PG	A653 GR 33
14	GR & HG	A1011 SS GR 33
14	PG	A653 GR 33
16	GR & HG	A1011 SS GR 33
16	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
P2001-10-GR	Perma-Green® III	10'	2.320 Lbs.
P2001-20-GR	Perma-Green® III	20'	2.320 Lbs.
P2001-10-PG	Pre-Galvanized Zinc	10'	2.320 Lbs.
P2001-20-PG	Pre-Galvanized Zinc	20'	2.320 Lbs.
P2001-10-HG	Hot-Dipped Galvanized	10'	2.480 Lbs.
P2001-20-HG	Hot-Dipped Galvanized	20'	2.480 Lbs.
P2001-10-PL	Plain	10'	2.320 Lbs.
P2001-20-PL	Plain	20'	2.320 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 PL = Plain

Column Loading - P2001
Unbraced Height (in)	Allowable Load at Slot Face (lbs)	Max Column Load Applied at C.G.
Unbraced Height (in)	Allowable Load at Slot Face (lbs)	K=0.65 (lbs)	K=0.80 (lbs)	K=1.0 (lbs)	K=1.2 (lbs)
24	4,200	15,030	14,600	13,940	13,220
36	4,070	14,030	13,220	12,090	10,990
48	3,920	12,850	11,720	10,290	9,040
60	3,700	11,630	10,290	8,760	7,530
72	3,410	10,460	9,040	7,530	5,740
84	3,140	9,410	7,990	6,080	4,220
96	2,890	8,490	7,120	4,650	3,230
108	2,530	7,700	5,740	3,680	2,550
120	2,210	6,950	4,650	2,980	*
144	1,690	4,890	3,230	*	*
KL/r > 200 See notes below for more information*

Beam Loading - P2001
Span (in)	Max Allowable Uniform Load (lbs)	Defl at Uniform load (in)	Uniform Loading at Deflection			Lateral Bracing Reduction Factor
Span (in)	Max Allowable Uniform Load (lbs)	Defl at Uniform load (in)	Span /180 (lbs)	Span /240 (lbs)	Span /360 (lbs)	Lateral Bracing Reduction Factor
24	*1,610	0.02	*1,610	*1,610	*1,610	1.00
36	*1,610	0.05	*1,610	*1,610	*1,610	1.00
48	1,600	0.13	1,600	1,600	1,600	0.98
60	1,280	0.20	1,280	1,280	1,080	0.92
72	1,060	0.28	1,060	1,060	750	0.85
84	910	0.38	910	830	550	0.78
96	800	0.51	800	630	420	0.71
108	710	0.64	670	500	330	0.64
120	640	0.79	540	410	270	0.57
144	530	1.13	380	280	190	0.45
168	460	1.56	280	210	140	0.38
192	400	2.02	210	160	110	0.32
216	350	2.52	170	130	80	0.28
240	320	3.16	140	100	70	0.25
Load limited by weld shear 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.