Strut channel is a modular support system — metal channel with continuous slots, combined with brackets and hardware that let you build frames, supports, and mounts without welding or drilling on-site.
Why the slots matter
You can bolt things at any point along the channel. Adjustments are easy, even after installation. That's the whole appeal — the structure isn't fixed until you decide it's fixed.
Types worth knowing
- Standard strut: continuous slots on both sides, maximum flexibility
- Slotted strut: round holes instead of slots, lighter loads
- Heavy duty strut: thicker material, deeper profile for higher loads
- Back-to-back: two channels welded together, for mounting on both sides or extra rigidity
Materials
Pre-galvanized steel is fine indoors and most outdoor applications. Hot-dip galvanized costs more but lasts longer in wet or corrosive environments. Stainless steel for anything harsh — chemical plants, coastal facilities, food processing. Aluminum for overhead work where weight matters.
Where it actually shows up
Hanging electrical conduit, supporting cable tray, pipe supports, HVAC equipment mounting, solar panel frames, industrial workbenches. The stuff that needs to be adjustable because you never get the measurements exactly right the first time.
Why use it instead of welding
Faster to install, no special skills needed, easy to modify later, and you can buy all the parts off the shelf. The tradeoff is a finished look that's more industrial — visible strut doesn't belong in every setting.
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