Back-to-back strut channel
Welded double channel in standard profiles, gauges and finishes — plus custom lengths, punching and fittings. Every order is made to your spec; request a quote for pricing and lead time.
Channel profiles
All profiles are 1-5/8″ wide and compatible with standard 1-5/8″ strut fittings, channel nuts and hardware.
Standard back-to-back
1-5/8″ × 3-1/4″ — two 1-5/8″ deep channels welded together. The workhorse for trapezes, racks and frames.
12 ga14 gaB22A / P1001 style
Shallow back-to-back
1-5/8″ × 1-5/8″ — two 13/16″ shallow channels welded together, for tight spaces and lighter loads.
Ask for gauges
Deep back-to-back
Built from deeper channel (e.g. 2-7/16″ or 3-1/4″) for long spans and heavy equipment supports.
Custom / on request
Typical specifications
| Attribute | Standard options |
|---|---|
| Width | 1-5/8″ (41.3 mm) |
| Combined height | 3-1/4″ standard; 1-5/8″ shallow; deeper profiles on request |
| Material thickness | 12 gauge (approx. 0.105″ / 2.6 mm) or 14 gauge (approx. 0.075″ / 1.9 mm) |
| Construction | Two channels joined by intermittent or continuous welds along the base |
| Lengths | 10′ and 20′ standard; cut-to-length available |
| Hole patterns | Solid, slotted, punched holes (e.g. 9/16″ on centers), or custom patterns |
| Materials | Carbon steel, stainless steel (Type 304 / 316), aluminum on request |
Dimensions shown are the common industry profile for 1-5/8″ strut systems. Exact tolerances, section properties and load data are provided with your quote — always confirm load capacity with published engineering data and a qualified engineer for your application.
Finish options
Choose a finish to match the environment. Not sure? Tell us where it’s going and we’ll recommend one.
| Finish | Typical specification | Best for |
|---|---|---|
| Pre-galvanized | Zinc-coated steel strip, e.g. ASTM A653 G90 | Indoor and dry, general-purpose installations |
| Hot-dip galvanized | Galvanized after fabrication, e.g. ASTM A123 | Outdoor, damp and industrial environments |
| Painted / epoxy | Electro-deposited or powder-coated finish (color on request) | Indoor, visible or color-coded installations |
| Plain | Uncoated carbon steel | Field-painted or customer-finished work |
| Stainless steel | Type 304 or Type 316 | Food processing, wastewater, marine and corrosive sites |
| Aluminum | On request | Lightweight and corrosion-resistant applications |
Finish availability and minimums vary by profile — confirm on your quote.
Fittings & hardware
Compatible 1-5/8″ strut components available with your channel order.
Channel nuts & bolts
- Spring and regular channel nuts
- Hex bolts, washers, threaded rod
- Rod couplers and hex nuts
Fittings & brackets
- Flat plates and splice plates
- 90° angles, U-, Z- and wing fittings
- Post bases and shelf brackets
Clamps & supports
- Beam clamps
- Pipe and conduit clamps/straps
- End caps and closure strips
Need something custom?
Special lengths, hole patterns, notching, welded frames and assemblies, specific finishes or private-label marking — as a manufacturer, we can build to your drawing.
Custom Capabilities- Cut-to-length pieces, bundled and labeled
- Custom punch and slot patterns
- Pre-assembled trapezes and frames
- Private-label / OEM part marking
Get pricing on back-to-back strut
Include profile, gauge, finish, length and quantity for the fastest quote.