P3301 - 1-5/8" x 1 3/4", 12 Gage, Back-to-Back, Solid | Products

The Unistrut P3301 is a back-to-back channel with dimensions of 1-5/8" x 1-3/4" and a 12 ga (.105") wall. It shorter than both the P1001 and P3001.


Column Loading - P3301
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	4,290	16,990	16,580	15,770	14,720
36	4,150	15,890	14,720	12,980	11,120
48	3,940	14,160	12,360	9,880	7,510
60	3,650	12,210	9,880	6,940	4,820
72	3,270	10,190	7,510	4,820	3,350
84	2,800	8,220	5,530	3,540	*
96	2,410	6,420	4,240	*	*
108	2,080	5,070	3,350	*	*
*KL/r > 200


Beam Loading - P3301
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	1,690	0.06	1,690	1,690	1,690	1.00
36	1,130	0.13	1,130	1,130	860	1.00
48	840	0.23	840	720	480	1.00
60	680	0.37	620	460	310	1.00
72	560	0.52	430	320	210	0.97
84	480	0.71	310	240	160	0.95
96	420	0.93	240	180	120	0.92
108	380	1.20	190	140	100	0.90
120	340	1.47	150	120	80	0.87
144	280	2.09	110	80	50	0.82

Notes:

Above loads include the weight of the member. This weight must be deducted to arrive at the net allowable load the beam will support.
Long span beams should be supported so as to prevent rotation and twist.
Allowable uniformly distributed loads are listed for various simple spans, that is, a beam on two supports. If load is concentrated at the center of the span, multiply load from the table by 0.5 and corresponding deflection by 0.8.
The lateral bracing factor should be multiplied by the load to determine the load retained based on the distance between lateral braces.