P1000H3 - 1-5/8" x 1-5/8", 12 Gage; Round Holes on all three sides

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Unistrut's P1000H3 has round holes on three sides of the channel, sized for use with 1/2" threaded rod and fasteners. These holes can eliminate the need for field drilling when installing a trapeze support, anchoring the channel to a surface, or for many other applications.

This channel is commonly used for trapeze supports, seismic bracing, and anchoring to floors, ceilings and walls. This is a great product for certain seismic bracing applications where slots are not allowed. This product also works well with our P9200 Telestrut for telescoping applications, such as solar racking, adjustable signage, and adjustable drop supports.

Product dimensions are 1 5/8" wide x 1 5/8" tall x 12 ga. thick; with round holes on three side.  The holes are 9/16" in diameter and 1 7/8" on center. The hole diameters and spacing match Unistrut’s General Fittings so that nearly all of our Fittings can be attached through these holes, allowing attachment to all sides of the channel.

Our P1000HS is available in the following finishes: Pre-Galvanized (PG), Hot-Dip Galvanized (HG), Plain (PL) and Green (GR).

Part No. Length (ft) Finish Product Weight / Ft (lbs/ft)
P1000H3 20 PG 1.75
P1000H3 10 PG 1.75
P1000H3 20 HG 1.85
P1000H3 10 HG 1.85
P1000H3 20 GR 1.75
P1000H3 10 GR 1.75
P1000H3 20 PL 1.75
P1000H3 10 PL 1.75

    Beam Loading

    Beam Loading - P1000H3
    Span
    (in)
    Max Allow. Uniform Load
    (lbs)
    Deflection at Uniform Load
    (in)
    Uniform Loading at Deflection Lateral Bracing Reduction Factor
    Span/180
    (lbs)
    Span/240
    (lbs)
    Span/360
    (lbs)
    24 1,521 0.06 1,521 1,521 1,521 1.00
    36 1,017 0.13 1,017 1,017 810 0.94
    48 765 0.22 765 684 450 0.88
    60 612 0.35 585 432 288 0.82
    72 504 0.50 405 306 198 0.78
    84 432 0.68 297 225 144 0.75
    96 378 0.89 225 171 117 0.71
    108 342 1.14 180 135 90 0.69
    120 306 1.40 144 108 72 0.66
    144 252 2.00 99 72 54 0.61
    168 216 2.72 72 54 36 0.55
    192 189 3.55 54 45 NR 0.51
    216 171 4.58 45 36 NR 0.47
    240 153 5.62 36 NR NR 0.44
    Note NR - Not Recommended
    Refer to the General Specifications for loading information.

    Column Loading

    Column Loading - P1000H3
    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 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 KL/r>200
    120 1,380 2,700 2,110 KL/r>200 KL/r>200
    144 1,150 2,180 1,660 KL/r>200 KL/r>200
    Refer to the General Specifications for loading information.

    Elements of Section

    Elements of Section - P1000H3
    Area of Section 0.555 in2 (3.6 cm2)
    Axis 1-1 Axix 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)

    General Specifications

    Standard Lengths:

    • 10 feet:  10' or 10’ 1/8” (3.05m) ± 1/8" (3 mm)
    • 20 feet:  20' or 20’ 3/8” (6.11m) ± 1/8" (3 mm)

    Special Lengths:

    Curved Channel:

    • Many Unistrut channel sections can be supplied with a curve. Click here for our ordering form, specifications, and instructions.

    Load Data:

    • All beam and column load data pertains to carbon steel and stainless steel channels.
    • Load tables apply only to UNISTRUT brand channel. Look for "UNISTRUT" on the product.
    • Load tables and charts are constructed to be in accordance with the SPECIFICATION FOR THE DESIGN OF COLD-FORMED STEEL STRUCTURAL MEMBERS 2007 EDITION published by the AMERICAN IRON AND STEEL INSTITUTE USING ASD METHOD.
    • Loads are based on 33 ksi steel cold formed to 42 ksi.
    • Safety Factor to Yield Strength is 1.67 for Beam Loads and 1.80 for Column Loads.
    • Beam loads are based on a simple beam and are given as a total uniform load (W) in pounds. For proper calculation procedures, refer to our Beam Load Calculation Guide.
    • For bearing loads, reference our Bearing Loads Page.

    Materials & Finishes

    Materials & Finishes - Standard:

    • Pregalvanized (PG):  Conforms to ASTM A653 SS GR 33, G90.
    • Unistrut Defender (DF):  Conforms to ASTM A1046 SS GR 33
    • Hot Dip Galvanized (HG):  Steel conforms to ASTM A1011 SS GR 33, Finish conforms to ASTM A123
    • Perma-Green (GR):  Steel conforms to ASTM A1011 SS GR 33, E-Coat finish
    • Perma-Gold (ZD):  Steel conforms to ASTM A1011 SS GR 33, Finish conforms to ASTM B633, Type II SC3
    • Plain (PL):  Conforms to ASTM A1011 SS GR 33
    Materials & Finishes - Special Metals:
    • Stainless Steel, Type 304 (SS):  ASTM A240, Type 304 *
    • Stainless Steel, Type 316 (ST):  ASTM A240, Type 316 *
    • Aluminum (EA):  ASTM B221, Type 6063-T6 (Extruded) *

    * These materials have different physical properties and performance characteristics. Please contact us for design support.