: An online supplier that stocks hundreds of sizes in round, square, and rectangular shapes, ready to ship in precut or mill lengths.
: Stocks "SteelWorks" brand round and square aluminum tubes in common diameters like 3/4" and 1".
These stores typically carry standard lengths (3–4 ft) of common round and square aluminum tubing.
: Usually found in the "Hardware" aisle near metal sheets and rods.
2. Specialized Metal Suppliers (Best for bulk or custom cuts)
You can buy aluminum tubing from local hardware stores, specialized metal suppliers, or various online retailers, depending on your project's scale and precision needs. Where to Buy Aluminum Tubing 1. Local Hardware Stores (Best for small DIY projects)