Best Steel Tubes Under $100 (2026)
We ranked units under $100 by a value score that combined seller rating, material grade (A500/A513), dimensional range (diameter/side and wall thickness), and price
This roundup covers steel tubes suitable for fabrication, framing, and light structural use priced under $100, prioritizing common sizes, wall thicknesses, and material grades used in shop and construction projects. Selections were scored for value by weighing material grade (A500/A513 carbon steel), dimensional options (square profiles, wall thickness, lengths), and seller ratings
Top Picks
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1
A500/A513 Carbon Steel Square Tubing 2.5in x 0.12in x 36in
Square carbon steel tubing, hot rolled, with good weldability and low cost. Customers note solid quality and suitable size for projects
- A500/A513 steel with good weldability
- hot rolled square tubing
- common North American steel tubing
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2
A500/A513 Carbon Steel Square Tubing, hot rolled, 1.5" x 3/16" x 36"
Carbon steel square tubing for structural framing, supports, and architectural metalwork. Durable, high-strength tube suitable for frameworks and hobby projects. One customer notes it’s a 4-foot stick and good value for money
- durable carbon steel
- square tubing for rigidity
- versatile for various projects
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3
OnlineMetals A500/A513 carbon steel square tube, 1.5" x 0.065" wall, 36"
Square carbon steel tube for structural framing and supports. Durable, suitable for commercial and hobbyist projects; customers cite good quality and value, with mixed rust reports
- high-strength carbon steel
- structural integrity
- versatile for frameworks
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4
1/4" Wall x 2" x 2" Steel Square Tube (custom lengths)
Steel square tube with 1/4" wall thickness and 2" x 2" cross-section. Cut length tolerance ±1/8"; custom lengths available. Versatile for durable fabrications. Customers note good quality and clean steel, with mixed value perceptions
- 1/4" wall thickness
- 2" x 2" square tube
- custom length options
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5
OnlineMetals A500/A513 carbon steel square tube, 3.5in x 0.25in wall, 12in length
Carbon steel square tubing with hot-rolled finish, suitable for structural supports and frameworks. customers note good quality and value; size noted as 4-foot length in feedback
- high-strength carbon steel
- square tubing with durable finish
- versatile for structural and architectural use
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6
A500/A513 carbon steel square tubing, hot rolled, 2"x0.065" wall, 24" length
Square tubing crafted from high-strength carbon steel for structural integrity in frameworks, machine supports, and architectural metal projects. Customers note good quality and value for money, with some concerns about rust resistance
- high-strength carbon steel
- structural integrity
- versatile for multiple projects
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7
OnlineMetals A500/A513 Rectangular Tubing, hot rolled, 1x2x0.12
Rectangular carbon steel tubing, hot rolled for strength and weldability. Durable A500/A513 material with good value and reliable sizing, as noted by customers
- A500/A513 steel with good weldability
- rectangular tubing 1x2 nominal
- hot-rolled for strength
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8
OnlineMetals A500/A513 Carbon Steel Square Tubing, 1.5" x 3/16" x 24"
Square carbon steel tubing for structural framing and supports. Durable construction suited for frameworks, machinery, and architectural metals. Customers note good quality and value, with some concern about rust resistance
- high-strength carbon steel
- square tubing crafted for structural integrity
- versatile for multiple project types
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9
A500/A513 Carbon Steel Square Tubing, Hot Rolled, 4 in x 1/4 in x 12 in
Square carbon steel tubing for structural applications, offering durability and strong framework support. Customers note good quality and functionality with suitable size for projects
- high-strength carbon steel
- square tubing form factor
- hot rolled finish
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10
A500/A513 Carbon Steel Square Tubing, 1.5" x 0.12" x 24"
Square carbon steel tubing (A500/A513) with good strength and weldability. Noted for its size options and value, suitable for metal projects. Customer highlight: solid quality and functionality
- A500/A513 steel
- good weldability
- affordable option