Unistrut is the manufacturer of P1000 Channel. Designed to carry the heaviest loads and provide the widest variety of applications, the 1-5/8″ series has become the accepted standard for use in mechanical, electrical and general construction applications where supports and attachments must meet the highest strength requirements.

The P1000 is our most popular “standard” Unistrut Channel. It is a 1-5/8″ x 1-5/8″ channel with a 12 ga (.105″) wall. P1000 is used by contractors and engineers in the construction of commercial, industrial, nuclear and residential markets for over 75 years. Unistrut Metal Framing has set the standard for product design, quality and performance.

Unistrut Channel is available in the following finishes: Perma-GreenĀ® III (GR), Pre-Galvanized Zinc, Hot Dipped Galvanized, Perma Gold and Plain Finish.

   
Elements of Section – P1000
Area of Section0.555 in2 (3.6 cm2)
 Axis 1-1Axis 2-2
Moment of Inertia (I)0.185 in4 (7.7 cm4)0.236 in4 (9.8 cm4)
Section Modulus (S)0.202 in3 (3.3 cm3)0.290 in3 (4.8 cm3)
Radius of Gyration (r)0.577 in(1.5 cm)0.651 in(1.7 cm)
            Column Loading – P1000 Unbraced
Height
(in) Allowable
Load at
Slot Face
(lbs) pports for lights, etc
Max Column Load
Applied at C.G. K=0.65
(lbs) K=0.80
(lbs) K=1.0
(lbs) K=1.2
(lbs) 24 3,550 10,740 9,890 8,770 7,740 36 3,190 8,910 7,740 6,390 5,310 48 2,770 7,260 6,010 4,690 3,800 60 2,380 5,910 4,690 3,630 2,960 72 2,080 4,840 3,800 2,960 2,400 84 1,860 4,040 3,200 2,480 1,980 96 1,670 3,480 2,750 2,110 1,660 108 1,510 3,050 2,400 1,810 * 120 1,380 2,700 2,110 * * 144 1,150 2,180 1,660 * * *KL/r > 200
Beam Loading – P1000
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)
241,6900.061,6901,6901,6901.00
361,1300.131,1301,1309000.94
488500.228507605000.88
606800.356504803200.82
725600.504503402200.78
844800.683302501600.75
964200.892501901300.71
1083801.142001501000.69
1203401.40160120800.66
1442802.0011080600.61
1682402.728060400.55
1922103.5560500.51
2161904.5850400.47
2401705.62400.44

Notes:

  1. Above loads include the weight of the member. This weight must be deducted to arrive at the net allowable load the beam will support.
  2. Long span beams should be supported so as to prevent rotation and twist.
  3. 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.
  4. The lateral bracing factor should be multiplied by the load to determine the load retained based on the distance between lateral braces.
Part No.FinishLengthWeightBox Qty.
P1000GR20189.001000
P1000GR10189.00500
P1000PG20189.001000
P1000PG10189.00500
P1000HG10201.40500
P1000HG20201.401000
P1000ZD20189.001000
P1000ZD10189.00500
P1000PL20189.001000
P1000PL10189.00500
P1000EA2073.301000
P1000EA1073.30500
P1000SS10189.00500
P1000SS20189.001000
P1000ST20189.001000
P1000ST10189.00500