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Square Metal Tube / Tubing

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square-tube-large-new-min-4superZoom-main

Square Metal Tube / Tubing

Square metal tube stock is used in both structural and architectural applications. Versatility and strength are the key positives of square tubing for sale. Whether you're looking for popular sizes like 2x2 square tubing or 1-inch square tubing, you can find them at Online Metals available in full size and custom cut lengths. Why waste time searching for metal tubing near you when you can price and order online today and enjoy the convenience of having it delivered directly to you? Get started on your project today!

Square tube is stocked in most sizes at our metal supply warehouses in Portland, Dallas, Atlanta, Wallingford, Toledo, and Los Angeles. Standard lengths and cut to size are available.

We carry square metal tubing in aluminum, brass, carbon steel, and stainless steel.

Relevant Knowledge Hub Resources: Understanding Steel | 5 Reasons to Cut-to-Size | Weight Calculator

square-tube-large-new-min-4superZoom-main

Square Metal Tube / Tubing

Square metal tube stock is used in both structural and architectural applications. Versatility and strength are the key positives of square tubing for sale. Whether you're looking for popular sizes like 2x2 square tubing or 1-inch square tubing, you can find them at Online Metals available in full size and custom cut lengths. Why waste time searching for metal tubing near you when you can price and order online today and enjoy the convenience of having it delivered directly to you? Get started on your project today!

Square tube is stocked in most sizes at our metal supply warehouses in Portland, Dallas, Atlanta, Wallingford, Toledo, and Los Angeles. Standard lengths and cut to size are available.

We carry square metal tubing in aluminum, brass, carbon steel, and stainless steel.

Relevant Knowledge Hub Resources: Understanding Steel | 5 Reasons to Cut-to-Size | Weight Calculator

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335 results

335 results

5" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064827

Sold & Shipped by KMP Metals LLC

Select a Size

QTY

Update

$77.53 for 1

$77.53 ea.

Dimensions

Height: 5"
Wall: 0.5"

Click for more details

5" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

5" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064827

5" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064827

Dimensions

Height: 5"
Wall: 0.5"

Select a Size

12″ (1 ft.) - $77.53 ea.
24″ (2 ft.) - $165.00 ea.
36″ (3 ft.) - $203.93 ea.
48″ (4 ft.) - $264.77 ea.
60″ (5 ft.) - $329.59 ea.
72″ (6 ft.) - $394.41 ea.
84″ (7 ft.) - $459.22 ea.
96″ (8 ft.) - $524.04 ea.
108″ (9 ft.) - $588.85 ea.
120″ (10 ft.) - $653.67 ea.
144″ (12 ft.) - $783.30 ea.
240″ (20 ft.) - $1,301.83 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

5" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064837

Sold & Shipped by KMP Metals LLC

Select a Size

QTY

Update

$56.86 for 1

$56.86 ea.

Dimensions

Height: 5"
Wall: 0.375"

Click for more details

5" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

5" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064837

5" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064837

Dimensions

Height: 5"
Wall: 0.375"

Select a Size

12″ (1 ft.) - $56.86 ea.
24″ (2 ft.) - $95.14 ea.
36″ (3 ft.) - $134.60 ea.
48″ (4 ft.) - $170.73 ea.
60″ (5 ft.) - $208.23 ea.
72″ (6 ft.) - $248.94 ea.
96″ (8 ft.) - $330.37 ea.
120″ (10 ft.) - $411.80 ea.
144″ (12 ft.) - $493.23 ea.
240″ (20 ft.) - $818.94 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

6" x 0.12" Carbon Steel Square Tube A500 Hot Rolled Part # 10396

Select a Size or Custom Cut

QTY

Update

$34.59 for 1

$34.59 ea.

Dimensions

Height: 6"
Wall: 0.12"

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-mob{product.code}

Key Features

CUSTOM CUT

View more product details

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-desk10396

6" x 0.1875" Carbon Steel Square Tube A500 Hot Rolled Part # 10397

Select a Size or Custom Cut

QTY

Update

$48.16 for 1

$48.16 ea.

Dimensions

Height: 6"
Wall: 0.1875"

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-mob{product.code}

Key Features

CUSTOM CUT

View more product details

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-desk10397

6" x 0.5" Carbon Steel Square Tube A500 Hot Rolled Part # 10401

Select a Size or Custom Cut

QTY

Update

$123.53 for 1

$123.53 ea.

Dimensions

Height: 6"
Wall: 0.5"

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-mob{product.code}

Key Features

CUSTOM CUT

View more product details

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-desk10401

6" x 3/16" Aluminum Square Tube 6061-T6-Extruded Part # 14969

Select a Size or Custom Cut

QTY

Update

$96.45 for 1

$96.45 ea.

Dimensions

Height: 6"
Wall: 0.1875"

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-B221

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-desk14969

6" x 1/4" Aluminum Square Tube 6061-T6-Extruded Part # 18024

Select a Size or Custom Cut

QTY

Update

$98.03 for 1

$98.03 ea.

Dimensions

Height: 6"
Wall: 0.25"

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-B221

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-desk18024

6" x 3/8" Aluminum Square Tube 6061-T6-Extruded Part # 21637

Select a Size or Custom Cut

QTY

Update

$192.98 for 1

$192.98 ea.

Dimensions

Height: 6"
Wall: 0.375"

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-mob{product.code}

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-desk21637

6" x 1/8" Aluminum Square Tube 6063-T52-Extruded Part # 14700

Select a Size or Custom Cut

QTY

Update

$71.73 for 1

$71.73 ea.

Dimensions

Height: 6"
Wall: 0.125"

Click for more details

aluminum-square-tube-6063-t52-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-B221

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

Click for more details

aluminum-square-tube-6063-t52-1superZoom-desk14700

6" x 0.18" Stainless Square Tube 304 Welded Part # 26148

Select a Size or Custom Cut

QTY

Update

$170.16 for 1

$170.16 ea.

Dimensions

Height: 6"
Wall: 0.18"

Click for more details

stainless-square-tube-304-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A554

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

Click for more details

stainless-square-tube-304-1superZoom-desk26148

6" x 1/2" Aluminum Square Tube 6061-T6-Extruded Part # 26246

Select a Size or Custom Cut

QTY

Update

$177.29 for 1

$177.29 ea.

Dimensions

Height: 6"
Wall: 0.5"

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-mob{product.code}

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-desk26246

6" x 0.25" Stainless Square Tube 304 Welded Part # 544

Select a Size or Custom Cut

QTY

Update

$185.04 for 1

$185.04 ea.

Dimensions

Height: 6"
Wall: 0.25"

Click for more details

stainless-square-tube-304-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A554

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

Click for more details

stainless-square-tube-304-1superZoom-desk544

6" x 0.25" Carbon Steel Square Tube A500 Hot Rolled Part # mp-00063112

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$52.42 for 1

$52.42 ea.

Dimensions

Height: 6"
Wall: 0.25"

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-mob{product.code}

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

mild-steel-square-tube-hot-rolled-a500-1superZoom-deskmp-00063112

6" x 0.25" Carbon Steel Square Tube A500 Hot Rolled Part # mp-00063112

Dimensions

Height: 6"
Wall: 0.25"

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $52.42 ea.
24″ (2 ft.) - $104.83 ea.
36″ (3 ft.) - $157.25 ea.
48″ (4 ft.) - $209.66 ea.
60″ (5 ft.) - $262.08 ea.
72″ (6 ft.) - $314.50 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

6" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064831

Sold & Shipped by KMP Metals LLC

Select a Size

QTY

Update

$71.83 for 1

$71.83 ea.

Dimensions

Height: 6"
Wall: 0.375"

Click for more details

6" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

6" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064831

6" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064831

Dimensions

Height: 6"
Wall: 0.375"

Select a Size

12″ (1 ft.) - $71.83 ea.
24″ (2 ft.) - $115.54 ea.
36″ (3 ft.) - $163.79 ea.
48″ (4 ft.) - $212.31 ea.
96″ (8 ft.) - $419.06 ea.
120″ (10 ft.) - $522.43 ea.
144″ (12 ft.) - $625.80 ea.
240″ (20 ft.) - $1,039.29 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

7" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064823

Sold & Shipped by KMP Metals LLC

Select a Size

QTY

Update

$146.29 for 1

$146.29 ea.

Dimensions

Height: 7"
Wall: 0.375"

Click for more details

7" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

7" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064823

7" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064823

Dimensions

Height: 7"
Wall: 0.375"

Select a Size

24″ (2 ft.) - $146.29 ea.
36″ (3 ft.) - $207.55 ea.
48″ (4 ft.) - $269.14 ea.
96″ (8 ft.) - $531.58 ea.
240″ (20 ft.) - $1,318.90 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

8" x 1/4" Aluminum Square Tube 6061-T6-Extruded Part # 21194

Select a Size or Custom Cut

QTY

Update

$154.27 for 1

$154.27 ea.

Dimensions

Height: 8"
Wall: 0.25"

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-B221

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-desk21194

8" x 3/8" Aluminum Square Tube 6061-T6-Extruded Part # 26437

Select a Size or Custom Cut

QTY

Update

$278.81 for 1

$278.81 ea.

Dimensions

Height: 8"
Wall: 0.375"

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-mob{product.code}

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

Click for more details

aluminum-square-tube-6061-t6-extruded-1superZoom-desk26437

8" x 1/2" Carbon Steel Square Tube A500 Hot Rolled Part # mp-00066982

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$161.70 for 1

$161.70 ea.

Dimensions

Height: 8"
Wall: 0.5"

Click for more details

8" x 1/2" Carbon Steel Square Tube A500 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

8" x 1/2" Carbon Steel Square Tube A500 Hot Rolled-deskmp-00066982

8" x 1/2" Carbon Steel Square Tube A500 Hot Rolled Part # mp-00066982

Dimensions

Height: 8"
Wall: 0.5"

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $161.70 ea.
24″ (2 ft.) - $323.40 ea.
36″ (3 ft.) - $474.60 ea.
48″ (4 ft.) - $609.00 ea.
72″ (6 ft.) - $693.00 ea.
96″ (8 ft.) - $903.00 ea.
120″ (10 ft.) - $1,123.50 ea.
144″ (12 ft.) - $1,344.00 ea.
240″ (20 ft.) - $2,203.95 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

8" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064824

Sold & Shipped by KMP Metals LLC

Select a Size

QTY

Update

$300.20 for 1

$300.20 ea.

Dimensions

Height: 8"
Wall: 0.375"

Click for more details

8" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

8" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064824

8" x 3/8" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064824

Dimensions

Height: 8"
Wall: 0.375"

Select a Size

48″ (4 ft.) - $300.20 ea.
96″ (8 ft.) - $586.68 ea.
120″ (10 ft.) - $731.48 ea.
240″ (20 ft.) - $1,323.83 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

10" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064836

Sold & Shipped by KMP Metals LLC

Select a Size

QTY

Update

$300.00 for 1

$300.00 ea.

Dimensions

Height: 10"
Wall: 0.5"

Click for more details

10" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

10" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064836

10" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064836

Dimensions

Height: 10"
Wall: 0.5"

Select a Size

12″ (1 ft.) - $300.00 ea.
24″ (2 ft.) - $445.00 ea.
36″ (3 ft.) - $452.29 ea.
48″ (4 ft.) - $599.72 ea.
60″ (5 ft.) - $747.14 ea.
72″ (6 ft.) - $894.57 ea.
84″ (7 ft.) - $1,042.00 ea.
96″ (8 ft.) - $1,189.42 ea.
108″ (9 ft.) - $1,216.23 ea.
120″ (10 ft.) - $1,350.25 ea.
144″ (12 ft.) - $1,618.53 ea.
240″ (20 ft.) - $2,596.44 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

12" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064830

Sold & Shipped by KMP Metals LLC

Select a Size

QTY

Update

$300.00 for 1

$300.00 ea.

Dimensions

Height: 12"
Wall: 0.5"

Click for more details

12" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

12" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled-deskmp-00064830

12" x 1/2" Carbon Steel Square Tube A500-A513 Hot Rolled Part # mp-00064830

Dimensions

Height: 12"
Wall: 0.5"

Select a Size

12″ (1 ft.) - $300.00 ea.
24″ (2 ft.) - $400.00 ea.
36″ (3 ft.) - $600.00 ea.
48″ (4 ft.) - $724.55 ea.
60″ (5 ft.) - $903.01 ea.
72″ (6 ft.) - $1,081.47 ea.
84″ (7 ft.) - $1,259.94 ea.
96″ (8 ft.) - $1,308.61 ea.
108″ (9 ft.) - $1,470.85 ea.
120″ (10 ft.) - $1,633.09 ea.
144″ (12 ft.) - $1,957.57 ea.
240″ (20 ft.) - $3,141.63 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

15mm x 2mm Aluminum Square Tube 6060 Metric 60" Length [+/- 2"] Part # 22466

Pack of 3

QTY

Update

$108.15

$108.15 ea.

Dimensions

Height: 15mm
Wall: 2mm

Click for more details

aluminum-square-tube-metric-6060-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

aluminum-square-tube-metric-6060-1superZoom-desk22466

20mm x 1mm Stainless Square Tube 304 Welded Metric 60" Length [+/- 2"] Part # 22345

Pack of 2

QTY

Update

$194.86

$194.86 ea.

Dimensions

Height: 20mm
Wall: 1mm

Click for more details

stainless-square-tube-304-metric-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A554

Key Features

FREE MTR Available

View more product details

Click for more details

stainless-square-tube-304-metric-1superZoom-desk22345

20mm x 2mm Stainless Square Tube 304 Welded Metric 60" Length [+/- 2"] Part # 22346

Pack of 1

QTY

Update

$180.26

$180.26 ea.

Dimensions

Height: 20mm
Wall: 2mm

Click for more details

stainless-square-tube-304-metric-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A554

Key Features

FREE MTR Available

View more product details

Click for more details

stainless-square-tube-304-metric-1superZoom-desk22346

20mm x 2mm Carbon Steel Square Tube 1018 Metric 60" Length [+/- 2"] Part # 22481

Pack of 3

QTY

Update

$228.05

$228.05 ea.

Dimensions

Height: 20mm
Wall: 2mm

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

Click for more details

mild-steel-square-tube-metric-1018-1superZoom-desk22481

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