Strut Services Group, Inc.

Unistrut Alabama



P5000SL – 1-5/8″ x 3-1/4″, 12 Gage; SL Slots

Unistrut’s P5000SL has long 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. The slots are 3″ long with 1″ spacing.

This channel is commonly used for trapeze supports, seismic bracing, ceiling grids, pipe, conduit, duct and cable tray supports, racks, and other general framing.

Product dimensions are 1 5/8″ wide x 3 1/4″ tall x 12 ga. thick; with long slots. The slots are 13/32″ wide x 3″ long, 4″ on center and sized for use with 3/8″ threaded rod or fasteners.

Our P5000SL is available in the following finishes:  Pre-Galvanized (PG), Hot-Dip Galvanized (HG), Plain (PL), Green (GR), Zinc Dichromate (ZD) and Stainless Steel (SS).


Part No. Length (ft) Finish Product Weight / Ft (lbs/ft)
P5000SL 10 PG 3
P5000SL 20 PG 3
P5000SL 10 HG 3.01
P5000SL 20 HG 3.01
P5000SL 10 GR 3
P5000SL 20 GR 3
P5000SL 20 PL 3
P5000SL 10 PL 3
P5000SL 10 ZD 3
P5000SL 20 ZD 3
Elements of Section – P5000
Area of Section 0.897 in2 (5.8 cm2)
Axis 1-1 Axix 2-2
Moment of Inertia (I) 1.098 in4 (45.7 cm4) 0.433 in4 (18 cm4)
Section Modulus (S) 0.627 in3 (10.3 cm3) 0.533 in3 (8.7 cm3)
Radius of Gyration (r) 1.107 in (2.8 cm) 0.695 in (1.8 cm)
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). Request quote.
Curved Channel:
  • Many Unistrut channel sections can be supplied with a curve. Contact us 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.
  • Welded channels are spot welded 2″ (51 mm) or 3″ (76 mm) on-center.

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.

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