P1100HS - 1-5/8" x 1-5/8", 14 Gage, Round Holes

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Unistrut's P1100HS has round holes on the back side 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.

Product dimensions are 1 5/8" wide x 1 5/8" tall x 14 ga. thick; with round holes on one 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 our fittings can be attached through these holes.

Our P1100HS is available in the following finishes: Pre-Galvanized (PG), Hot-Dip Galvanized (HG), Plain (PL), Green (GR), Zinc Dichromate (ZD), Stainless Steel (SS) and Aluminum (EA).

Part No. Length (ft) Finish Product Weight / Ft (lbs/ft)
P1100HS 20 PG 1.36
P1100HS 10 PG 1.36
P1100HS 10 HG 1.442
P1100HS 20 HG 1.442
P1100HS 20 GR 1.36
P1100HS 10 GR 1.36
P1100HS 20 PL 1.36
P1100HS 10 PL 1.36
P1100HS 20 SS 1.36

    Beam Loading

    Beam Loading - P1100HS
    Span
    (in)     		Max Allowable 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 1,215 0.06 1,215 1,215 1,215 1.00
    36 810 0.13 810 810 630 0.89
    48 612 0.23 612 531 360 0.78
    60 486 0.36 459 342 225 0.68
    72 405 0.51 315 234 162 0.59
    84 351 0.70 234 171 117 0.52
    96 306 0.92 180 135 90 0.47
    108 270 1.15 144 108 72 0.43
    120 243 1.42 117 81 54 0.40
    144 207 2.09 81 63 36 0.36
    168 171 2.75 54 45 27 0.32
    192 153 3.67 45 36 NR 0.30
    216 135 4.61 36 27 NR 0.28
    240 126 5.90 27 NR NR 0.26
    Note NR - Not Recommended
    Refer to the General Specifications for loading information.

    Column Loading

    Column Loading - P1100HS
    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 KL/r>200
    120 760 1,490 1,180 KL/r>200 KL/r>200
    144 630 1,210 950 KL/r>200 KL/r>200
    Refer to the General Specifications for loading information.

    Elements of Section

    Elements of Section - P1100HS
    Area of Section 0.418 in2 (2.7 cm2)
    Axis 1-1 Axix 2-2
    Moment of Inertia (I) 0.145 in4 (6 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) 0.65 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.