Unistrut – P1000H3 – 1-5/8″ x 1-5/8″, 12 Gauge; Round Holes on all three sides


The Unistrut P1000H3 is a robust and versatile framing system designed to meet a wide range of construction needs. Made from durable 12-gauge steel, this 1-5/8″ x 1-5/8″ channel offers exceptional strength and stability. What sets the P1000H3 apart is its round hole design on all three sides, providing maximum flexibility for attaching and securing accessories. Whether you need to mount electrical components, support HVAC systems, or create custom structures, the Unistrut P1000H3 offers a reliable and adjustable solution. With its corrosion-resistant finish and easy installation, this product is perfect for both commercial and residential projects. Trust the Unistrut P1000H3 to deliver outstanding performance and versatility in any construction or industrial setting.



  • Product dimensions are 1 5/8″ wide x 1 5/8″ tall x 12 ga. thick; with round holes on three side.
  • Holes for 1/2″ rod and fasteners
  • 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.
  • Telescopes with P9200 Telestrut
  • Our P1000H3 is available in the following finishes: Pre-Galvanized (PG), Hot-Dip Galvanized (HG), Plain (PL) and Green (GR).
  • Made in the USA

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