Best Aluminum Tubes Under $100 (2026)
We ranked tubes under $100 by a value score that weighted alloy (6063), profile variety, wall thickness, length options, finish/temper, and overall cost-effectiveness
The Verdict
- Best Overall: Aluminum Tube 6063 Round Tube 1/4" OD x .04" Wall x 36" Long (6 pcs) — for small projects: six 36" 6063 round tubes with thin walls that balance weight and rigidity
- Best Value: Aluminum Round Tube 6063, 3/8 in OD, 0.04 in wall, 36 in long, 4 pcs — Best compact round option: four 36" 6063 round tubes offering consistent OD and thin-wall flexibility for light builds
This roundup identifies aluminum tubes under $100 suited for metalworking, fabrication, prototyping, and DIY projects, emphasizing alloy, shape, and value. Picks were chosen by comparing 6063 alloy construction, available profiles (round, square, rectangular), lengths and wall thicknesses, finish, and overall value score
Top Picks
-
1
Best Overall Aluminum Tube 6063 Round Tube 1/4" OD x .04" Wall x 36" Long (6 pcs)
for small projects: six 36" 6063 round tubes with thin walls that balance weight and rigidity
6063 aluminum round tubing, 1/4" outer diameter, 0.04" wall, 36" long. corrosion resistant with good weldability and machinability. customers note solid quality and strength
- 6063 alloy with good machinability
- long 36" length
- suitable for welding
-
2
Best Value Aluminum Round Tube 6063, 3/8 in OD, 0.04 in wall, 36 in long, 4 pcs
Best compact round option: four 36" 6063 round tubes offering consistent OD and thin-wall flexibility for light builds
6063 aluminum round tube, 3/8 in OD, 0.04 in wall, 36 in length. Durable, corrosion-resistant, and easy to cut or weld. Customers note good quality and strength
- 6063 aluminum alloy
- 36 inch length
- easy machinability
-
3
6063 Aluminum Rectangular Tubing, 2 x 6, 0.125" Wall, 12" Length
Best for short structural parts: 12" 6063 rectangular tubing with 0.125" wall for increased stiffness in compact assemblies
6063-T52 extruded aluminum tubing with corrosion resistance and smooth surface. Customers note good quality and build, but edges can be rough and shipments may scratch or nick the product
- 6063-T52 extruded aluminum
- 2" x 6" rectangular tube
- 0.125" wall thickness
-
4
6063 Aluminum Rectangular Tubing, T52, 0.75 x 1.5 x 0.125, 24"
Best mid-length rectangular choice: 24" 6063 T52 rectangular tubing that suits framing and bracket applications
6063 aluminum rectangular tubing with good corrosion resistance and smooth surface. Handles moderate loads with smooth finish; edges can be rough and shipping may cause scratches, per customer feedback
- 6063 alloy with corrosion resistance
- rectangular tubing with smooth surface
- t52 temper for strength
-
5
6063 aluminum tube square, mill finish, 1" x 0.125" wall, 36"
Best square mill-finish option: 36" 6063 square tube with 1" side and 0.125" wall for general fabrication
6063 aluminum square tube with mill finish. smooth surface and good corrosion resistance; precise dimensions and solid value noted by customers
- 6063 alloy with corrosion resistance
- pre-cut 36" length, 1" height
- T52 tempered extrusion
-
6
6063 aluminum tube - square, unpolished, 1.25" height, 0.125" wall, 24" length
Best unpolished square tube: 24" 6063 square section with 1.25" side and 0.125" wall for versatile structural use
6063 aluminum tube with square cross-section, unpolished finish, extruded and T52 tempered. Delivers corrosion resistance and smooth surface with precise dimensions; suitable for lightweight structure projects. Customers note solid build quality and good value for money
- 6063 alloy with corrosion resistance
- square extruded cross-section
- T52 temper for strength
-
7
6063 Aluminum Rectangular Tubing, T52, 2x3 in, 0.125 in wall, 36 in
Best for larger rectangular needs: 36" 6063 T52 rectangular tubing sized for heavier frame and support tasks
6063 aluminum rectangular tubing with smooth surface and good corrosion resistance. Edges may be rough and some shipments arrive scratched
- corrosion resistance
- smooth surface for machining
- known alloy grade 6063
-
8
Aluminum 6063-T52 Square Tube 3/4" x 3/4" 1/8" Wall 72"
Best long square extrusion: 72" 6063 T52 square tube offering extended length for long runs and rail applications
6063 aluminum square tube with good corrosion resistance and weldability. Meets ASTM B221 specifications. One customer notes precise dimensions and solid build quality
- corrosion resistance
- weldability
- dimensional precision
-
9
Aluminum 6063-T52 Square Tubing 4x4x1/8" (ASTM B221) 12"
Best compact heavy-section square: 12" 4x4 6063 square tubing with 0.125" wall for robust short spans
6063 aluminum square tubing with good corrosion resistance and weldability. Meets ASTM B221 specs; heat treated for increased strength. Customers note solid build and precise dimensions with mixed feedback on fit and perceived strength
- excellent corrosion resistance
- well-weldable 6063 alloy
- ASTM B221 compliant
-
10
Aluminum 6063-T52 Square Tubing 1-3/4 x 1-3/4, 1/8 Wall, 24 in
Best medium square profile: 24" 6063 square tubing at 1-3/4" side and 0.125" wall for balanced strength and handling
6063 aluminum square tubing with ASTM B221 compliance; corrosion resistant and good weldability. Customer note: precise dimensions and solid build for various projects
- 6063 architectural aluminum
- ASTM B221 compliant
- heat treated for increased strength