Steel Rectangular Tubing

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216 Products

Steel

Low-Carbon Steel Rectangular Tubes

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength.

Easy-to-Weld 4130 Alloy Steel Rectangular Tubes

4130 alloy steel has a low carbon content that provides good weldability. It's often used for structural applications.

Structural Framing

Weld-Together Framing and Fittings

Create strong structures by welding this framing together. Add metal panels to close off openings.

Telescoping Weld-Together Rails

Create posts of varying lengths.

Steel Bolt-Together Framing and Fittings

Rails are drilled with consistently spaced holes for multiple mounting options that do not require machining. Use this steel bolt-together framing to build guards, tables, and racks.

Aluminum Bolt-Together Framing and Fittings

Half the weight of steel, this aluminum framing resists corrosion in wet environments.

Strut Channel

Extra Low-Profile Strut Channel

Run cable and tubing in the tightest spaces with channel that is one-quarter the height and one-half the width of regular strut channel.

Side-to-Side Stacked Strut Channel

This welded, one-piece strut channel combines two strut channels side-to-side.

Back-to-Back Stacked Strut Channel

This welded, one-piece strut channel combines two strut channels back-to-back.

Low-Profile Strut Channel

Half the height and the same width as regular strut channel, this low-profile strut channel fits into tight spots and is compatible with many of the same brackets.

Curved Strut Channel

Create continuous runs of channel without corners.

High-Profile Strut Channel

Up to two times the height of regular strut channel, this high-profile channel is stronger than regular strut channel.

Strut Channel for Quick-Connect Clamps

For compatibility with quick-connect clamps to secure pipe and conduit without screws and tools, this strut channel has narrow slotted holes.

Telescoping Strut Channel

Slide the strut channel into the tube for telescoping length adjustments.