Best Metal Tubing For Carports: Compare Steel and Aluminum

#1 · Best Overall

1. JEGS Square Steel Tubing

• Dimensions: 96"L x 0.75"W
• Material: Steel
• Dimensions L x W: 96"L x 0.75"W

Best for: Long square steel sections.

Why it ranks #1: Its 8-foot length, square 3/4-inch profile, and 0.065-inch wall make it a practical frame-material candidate with fewer short sections to join.

An 8-foot length is the JEGS square steel tube’s clearest advantage, letting a builder work with longer straight sections than the 4-foot stock in this roundup. Its 3/4-inch width and 0.065-inch wall suit projects whose plans call for that specific square-tube size.

The 96-inch length can reduce the number of separate pieces needed along a layout compared with short stock, provided the project calls for 3/4-inch square tubing. JEGS identifies the material as A513 high-carbon steel, hot rolled and electric welded, giving a buyer the construction details needed to assess it against a fabrication plan. At 4.7 pounds, each listed tube remains a single manageable section, while the 0.065-inch wall sets a specific design constraint.

Skip it if you need corrosion-resistant aluminum square stock; Evecad 1.5-inch square aluminum tube offers a different material and profile.

This JEGS tube suits a fabricator whose carport or repair plan specifies 3/4-inch square steel and benefits from an 8-foot section. Check the listed profile and wall against the intended frame design before committing.

Listed on Amazon as: Mild Steel Tubing Square 3/4 in. Width 0.065 in. Wall Thickness 8 ft.

#2 · Best Multi-Piece Set

2. Generic Square Steel Tubing

• Dimensions: 1"L x 1"W
• Material: Steel
• Dimensions L x W: 1"L x 1"W

Best for: Four-piece welded steel frames.

Why it ranks #2: Four 4-foot lengths of 1-inch square A36 mild steel provide 16 linear feet total for a builder who needs multiple matching sections.

Four 48-inch pieces provide this A36 mild-steel square tubing with 16 linear feet of stock, a practical quantity for smaller frame layouts, brackets, or repairs. Each section measures 1 inch square with a 0.063-inch wall, making the dimensions clear for fabrication planning.

The four-piece pack supplies multiple 4-foot sections, which can be cut and arranged for a fabrication job without starting from one long length. Its 1-inch square profile and 16-gauge, 0.063-inch wall define the stock dimensions, while the listing identifies A36 mild steel as raw and unfinished. That finish is relevant when planning surface preparation and protection for an outdoor carport project. The stated length tolerance is plus or minus 1/8 inch.

Skip it if you need a single 8-foot square section; JEGS Mild Steel Tubing 3/4-inch square is listed at that length.

This pack suits builders assembling smaller welded frames, brackets, and repairs from multiple 1-inch square sections. Its raw, unfinished steel and 4-foot piece length matter for outdoor protection and for layouts requiring longer uninterrupted members.

Listed on Amazon as: (4 PACK)- 1" x 1" MILD STEEL SQUARE TUBING – 4 Foot Length (48 inches) – 1/16" Wall Thickness (16 Gauge)- A36 Raw Steel Tube. Perfect for Construction, Repairs, Welding. (16 Linear ft Total)

#3 · Largest Profile

3. Allstar Rectangular Steel Tubing

• Dimensions: 90"L x 2"W
• Material: Steel
• Dimensions L x W: 90"L x 2"W

Best for: Long rectangular steel layouts.

Why it ranks #3: Its 2-by-3-inch rectangular profile, 0.083-inch wall, and 7.5-foot length offer a larger section than the smaller square options.

A 7.5-foot length and 2-by-3-inch rectangular profile make this Allstar Performance steel tube the roundup’s long rectangular option. Those dimensions suit layouts calling for a broad rectangular section rather than short round stock, with a listed wall thickness of 0.083 inch.

The 90-inch section can serve a longer uninterrupted run than the 4-foot products, provided the project specifies the 2-by-3-inch rectangle. Its 0.083-inch wall gives a stated dimension for checking the planned assembly, while the steel material is identified in the listing. As a single long piece, it may require planning for transport, handling, and cutting around the frame layout. Its rectangular shape is a compatibility boundary for designs using square or round tubing.

Skip it if you need multiple short square pieces; Generic A36 1-inch square tubing comes as four 48-inch sections.

This Allstar Performance tube suits a fabricator whose plan calls for a long 2-by-3-inch steel rectangle. Its single 90-inch length and rectangular profile need to match the intended frame layout, transport approach, and connection details.

Listed on Amazon as: Allstar Steel Tubing 2in x 3in x .083 Rectangle 7.5ft

#4 · Best Aluminum Profile

4. Evecad Square Aluminum Tube

• Dimensions: 48"L x 1.5"W
• Dimensions L x W: 48"L x 1.5"W

Best for: Aluminum square-frame DIY builds.

Why it ranks #4: The 1.5-inch square profile and 1/8-inch wall offer a larger, corrosion-resistant 6063-T6 aluminum section, though each tube is only 48 inches long.

The 1.5-inch square profile and 48-inch length give this Evecad aluminum tube a useful format for shorter frame sections and home-improvement fabrication. Its 1/8-inch wall and 6063-T6 material make it a candidate when you need square aluminum stock rather than round tubing or a long steel section.

Each tube measures 1.5 by 1.5 inches and is 48 inches long, so it suits projects that use manageable square sections instead of a continuous carport-length member. The 1/8-inch wall and 6063-T6 aluminum are specified together with strength and corrosion resistance, supporting consideration for structural DIY work. A natural mill finish and clean square cuts aid handling. The listing offers one- or two-piece options; cutting or welding calls for gloves and goggles.

Skip it if you need an 8-foot steel length; JEGS Mild Steel Tubing 3/4-inch square is listed at 8 feet.

A DIY fabricator seeking square aluminum stock for short frames or repairs should consider this two-option listing. Its 48-inch pieces and 1.5-inch profile are boundaries to plan around when laying out longer carport members.

Listed on Amazon as: 1.5" x 1.5"x 48" Long Structural Square Aluminum Tube, 1/8" Wall Thickness, Seamless Square Tubing DIY Metal Profile for Industrial or Home Improvement Projects, 2Packs

#5

5. Allstar Round DOM Tubing

• Dimensions: 48"L x 1.75"W
• Material: Alloy Steel
• Dimensions L x W: 48"L x 1.75"W

Best for: Round DOM steel fabrication.

Why it ranks #5: This alloy-steel DOM tube has a 1.75-inch outside diameter and 0.120-inch wall, but its round shape and 4-foot length limit frame-layout fit.

DOM construction distinguishes this Allstar Performance tube from the roundup’s square and rectangular stock, making it relevant when a fabrication plan calls for round steel. It measures 1-3/4 inches in outside diameter, has a 0.120-inch wall, and arrives as a 4-foot length.

The 1.75-inch outside diameter and round profile suit layouts that specifically use round tubing, while the 0.120-inch wall gives the fabricator a stated dimension for planning connections. Its 48-inch length is more practical for short pieces than a full-span member, so a longer frame layout may require a different section plan. Allstar identifies the material as alloy steel and the tubing as DOM; those details help narrow selection to compatible fabrication specifications.

Skip it if you need a 90-inch rectangular section; Allstar Performance Steel Tubing 2-by-3-inch rectangle is listed at 7.5 feet.

Choose this for a fabrication job calling for 1-3/4-inch round DOM alloy-steel tubing and short sections. The 4-foot length and round geometry are important limits for a carport layout based on long square or rectangular members.

Listed on Amazon as: Allstar Round DOM Steel Tubing 1-3/4in x .120in x 4ft

#6

6. Gisafai Round Steel Tubes

• Dimensions: 35.83"L x 0.87"W
• Material: Steel
• Dimensions L x W: 35.83"L x 0.87"W

Best for: Two-piece cold-rolled round stock.

Why it ranks #6: Two 36-inch cold-rolled steel tubes with 7/8-inch outside diameter and 0.12-inch wall suit shorter round-tube needs, not long frame runs.

Two 36-inch seamless cold-rolled steel tubes give the Gisafai set repeatable round sections for indoor or outdoor fabrication tasks. Each measures 7/8 inch outside diameter, 0.64 inch inside diameter, and 0.12 inch wall, dimensions that help identify a specific project fit.

The pair of 36-inch lengths gives a buyer two matching sections for a build that needs repeated round members, while the seamless construction is a stated feature. Gisafai identifies cold-rolled steel as the material and describes the tubes for indoor and outdoor use. Their 7/8-inch outside diameter and 0.64-inch inside diameter are useful for checking clearances or connection requirements; the 0.12-inch wall further narrows compatibility. The lengths remain shorter than long uninterrupted frame rails.

Skip it if you need an 8-foot square section; JEGS Mild Steel Tubing 3/4-inch square is listed in that length.

Consider this set for a project requiring two matching 36-inch round steel sections with defined inside and outside diameters. Its short length and round profile set clear limits for carport layouts based on long, square structural members.

Listed on Amazon as: Gisafai 2 Pcs 7/8" Od, 0.64" ID, 0.12" Wall, 36" Length Metal Steel Tube

#7

7. GeilSpace Stainless Round Tubes

• Dimensions: 42"L x 0.75"W
• Dimensions L x W: 42"L x 0.75"W

Best for: Longer stainless round DIY sections.

Why it ranks #7: Two 42-inch 304 stainless tubes offer corrosion resistance and a 0.06-inch wall, but their 3/4-inch round profile is a narrower fit.

At 42 inches long, each GeilSpace tube offers more continuous stock than the short stainless piece in this group, while keeping a manageable round profile. The two-piece set uses 3/4-inch OD 304 stainless steel with a 0.06-inch wall for projects specifying those dimensions.

The pair of 42-inch lengths supplies two matching sections, useful when a project needs repeated pieces of the same size. GeilSpace identifies the material as 304 stainless steel and describes rust and corrosion resistance for indoor and outdoor use, supporting consideration for exposed applications. A smooth, polished, burr-free surface offers a clean finish, and the tubes are listed as weldable and cuttable for customization. Their 3/4-inch outside diameter remains a specific fit constraint.

Skip it if you need a 90-inch rectangular steel member; Allstar Performance Steel Tubing 2-by-3-inch rectangle is 7.5 feet long.

This set suits a builder needing matching, cuttable 304 stainless round sections for a smaller DIY or exposed project. The 42-inch length and 3/4-inch diameter should be checked against the frame layout before treating it as carport stock.

Listed on Amazon as: GeilSpace 3/4" OD 304 Stainless Steel Round Tube, 42 inch Length Industrial Metal Pipe, Weldable and Cuttable Smooth Steel Tubing for DIY Furniture, Industrial Decor and Construction (2 Pack)

#8

8. MOKOVI Stainless Steel Tube

• Material: Stainless Steel

Best for: Corrosion-resistant short stainless tube.

Why it ranks #8: Its 1.5-inch outside diameter and 1.5 mm wall are paired with corrosion-resistant 304 stainless steel, but the single piece is only 16 inches long.

304 stainless steel and a 16-inch seamless round form define this MOKOVI tube for short applications where corrosion resistance matters. Its 1-1/2-inch outside diameter and 1.5-millimeter wall provide specific dimensions for a fabrication plan, while the polished surface gives the piece a finished appearance.

The listed 304 stainless material is described as corrosion resistant and weldable, which can matter for projects exposed to harsh environments or requiring welded connections. At 16 inches long, the tube is suited to short sections rather than continuous carport framing. Its 1-1/2-inch outside diameter and 1.5-millimeter wall help check dimensional compatibility before processing. The listing says professional equipment can be used for threading or welding, and identifies the surface as polished and seamless.

Skip it if you need a 42-inch stainless section; GeilSpace 3/4-inch OD 304 stainless round tube is listed at that length.

This MOKOVI tube fits a buyer needing a short 304 stainless round section for a corrosion-conscious fabrication task. Its 16-inch length is the key boundary, so it does not provide a continuous member for a long carport frame.

Listed on Amazon as: 1 Pcs 1-1/2" OD 304 Stainless Steel Tube, 16" Long, Thickened 304 Stainless Steel Seamless Tubing Round Metal Pipe, Industrial Metal Straight Tube(Industrial cold-rolled steel pipe)

#9

9. Eorbow Round Steel Tubes

• Dimensions: 12"L x 0.75"W
• Material: Cold Rolled Steel
• Dimensions L x W: 12"L x 0.75"W

Best for: Short round steel project stock.

Why it ranks #9: Six cold-rolled steel tubes have a 3/4-inch outside diameter and 0.12-inch wall, but their 12-inch lengths are poorly suited to carport spans.

Six 12-inch pieces make this Eorbow cold-rolled steel tubing a quantity-focused option for short fittings or small fabrication tasks, rather than long carport rails. Each round tube has a 3/4-inch outside diameter, a 0.51-inch inside diameter, and a 0.12-inch wall.

The six-piece package gives a project several short sections to work with, while the 12-inch length sets a clear limit on each uninterrupted run. Eorbow lists cold-rolled steel and describes the tubing as weldable, with corrosion and rust resistance also stated in the product features. The 3/4-inch outside diameter and 0.51-inch inside diameter help determine whether the tubes suit a specific connection or sleeve arrangement; the thick 0.12-inch wall is another key fit dimension.

Skip it if you need long square frame members; JEGS Mild Steel Tubing 3/4-inch square comes in an 8-foot length.

This Eorbow set fits small-scale projects that need multiple short, round steel sections with stated inner and outer diameters. It is not a long-span carport stock choice; plan for separate members and connections if using it in a larger build.

Listed on Amazon as: Eorbow 6 Pack Cool Rolled Steel Tube, 3/4" OD Industrial Metal Tubing, 0.51" LD Seamless Round Steel Pipe, 0.12'' Wall Weldable Tubing for Automotive Applications, 12 Inch Length

#10

10. Blulu Round Aluminum Tubes

• Dimensions: 35.83"L x 0.39"W
• Material: Aluminum
• Dimensions L x W: 35.83"L x 0.39"W

Best for: Bulk thin aluminum round stock.

Why it ranks #10: The 12-piece set has 36-inch aluminum tubes, but the 0.35-inch outside diameter and 0.08-inch wall are small for carport framing.

Twelve 36-inch aluminum tubes give the Blulu pack a high piece count for repeated light-duty frame, model, or DIY sections. Each hollow round tube measures 0.35 inch outside diameter with a 0.08-inch wall, so this set is for plans calling for slim aluminum stock.

The twelve-piece quantity supports projects needing repeated sections or replacements, while the 36-inch length offers more continuous stock than the short fitting tubes in this roundup. Blulu describes the aluminum as light but strong and the surface as burr-free, which can aid carrying and handling. The 0.35-inch outside diameter and 0.08-inch wall are key limits for checking a design; the listed applications include frames, models, antennas, gardening products, and boat building.

Skip it if you need 1.5-inch square aluminum stock; Evecad 1.5-inch square aluminum tube has a substantially larger profile.

This Blulu set suits a buyer needing many slim aluminum sections for light DIY frames, models, or similar listed uses. Its 0.35-inch diameter is a clear boundary for carport framing plans that specify larger structural tubing.

Listed on Amazon as: Blulu 12 Pcs Round Aluminum Tube, 0.35" Od X 0.08" Wall X 36" Long