Unistrut – P1000SL – 1-5/8″ x 1-5/8″, 12 Gauge; Long Slots


Introducing the Unistrut P1000SL – the ultimate solution for your structural support needs! This innovative product is specifically designed with versatility and durability in mind. Made from high-quality 12-gauge steel, the P1000SL boasts exceptional strength to support heavy loads.

Featuring its unique long slots, this Unistrut model offers unmatched flexibility during installation. The elongated slots allow for easy adjustment, enabling effortless alignment and precise positioning of threaded rods, hangers, or other attachments. This feature is particularly handy when dealing with complex wiring, conduit, or pipework installations.

Not only does the P1000SL ensure a seamless installation process, but it also guarantees long-lasting performance. Its galvanized finish provides excellent corrosion resistance, making it suitable for both indoor and outdoor applications. This product is built to withstand the test of time, ensuring reliable support and peace of mind for any construction or industrial project.

With a size of 1-5/8″ x 1-5/8″, the Unistrut P1000SL perfectly balances strength and space efficiency. Its compact design allows for effective use of available space while maintaining optimal load-bearing capabilities. Whether you’re constructing a warehouse, retrofitting a commercial building, or installing electrical systems, this Unistrut model will excel in meeting your specific needs.

Elevate your construction projects and streamline your installations with the Unistrut P1000SL. Its exceptional strength, adjustable long slots, and corrosion-resistant construction make it the go-to choice for professionals seeking reliability and versatility in their structural support systems. Invest in a product you can trust, and experience the difference firsthand.



12 gauge slotted strut channel P1000SL has slots on the back side for use with 3/8″ threaded rod and fasteners. These slots can eliminate the need for field drilling and allow adjustability when installing. This channel is commonly used for trapeze supports, seismic bracing, ceiling grids, pipe, conduit, duct and cable tray supports, racks, and other general framing. For application examples, refer to our Application Showcase.
  • Product dimensions are 1 5/8″ wide x 1 5/8″ tall x 12 ga. thick; with slots.
  • Slotted for adjustability
  • The slots are 13/32″ wide x 3″ long, 4″ on center and sized for use with 3/8″ Threaded Rod or Fasteners
  • Slotted for 3/8″ rod and fasteners
  • Our P1000SL is available in the following finishes: Pre-Galvanized (PG), Hot-Dip Galvanized (HG), Plain (PL), Green (GR), Zinc Dichromate (ZD) and Stainless Steel (SS).
  • 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