Unistrut – P1000KO – 1-5/8″ x 1-5/8″, 12 Gauge; Knock Outs


This product is a reliable and adaptable solution designed to meet your structural requirements. With a 1-5/8″ x 1-5/8″ profile carefully crafted from 12-gauge steel, the P1000KO offers exceptional strength and longevity.

The P1000KO stands out with its unique knock outs, strategically placed along the length of the strut. These knock outs provide easy access for routing cables and wires, making it an ideal solution for electrical installations. The versatility of the P1000KO allows for quick and hassle-free integration with various accessories, brackets, or supports, giving you the flexibility you need for your specific project.

Manufactured to the highest industry standards, the Unistrut P1000KO ensures reliable performance and durability in even the most demanding environments. Its robust construction can withstand heavy loads, providing a secure framework for your construction needs.

With the Unistrut P1000KO, you can confidently tackle a wide range of applications, knowing that you have a dependable and adaptable structural solution at your disposal. Experience the unrivaled convenience and versatility that the P1000KO offers, allowing you to create secure and customized frameworks tailored to your needs.



12 gauge strut channel with knock outs P1000KO is designed for use in electrical raceway and support applications, and is UL listed and CSA listed for use as a strut-type channel raceway. The knock-outs are supplied attached to the strut and can be punched out in the field, as needed, for entry and exit of the wiring from the channel raceway.
  • Product dimensions are 1 5/8″ wide x 1 5/8″ tall x 12 ga. thick; with knock-outs. The knock-outs are 7/8″ in diameter and 6″ on center.
  • Knock-outs for wiring
  • UL and CSA listed
  • Our P1000KO is available in the following finishes: Pre-Galvanized (PG), Hot-Dip Galvanized (HG), Plain (PL) and Green (GR).
  • Made in the USA

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:

  • Available with a tolerance of ±1/8” (3 mm).

Curved Channel:

  • Many Unistrut channel sections can be supplied with a curve.

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 under Resources.

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.

1-877 385 5130

480 Collier-MacMillan Drive · Cambridge · ON N1R 6R5 · CanadaDrainage: 877 385 5130 | Unistrut: 877 243 6889