These suppliers offer the widest variety of sizes, alloys (like 6061 and 6063), and custom cutting services:
Great for standard sizes and immediate pickup for smaller projects: : Carries brands like Everbilt . Everbilt 3/4 in. x 4 ft. Aluminum Square Tube Go to product viewer dialog for this item. : ~$21.82. Everbilt 1 in. x 4 ft. Aluminum Square Tube Go to product viewer dialog for this item. : ~$31.90. Lowe's : Features the Steelworks brand. Steelworks 1-in x 8-ft Mill Finished Aluminum Square Tube Go to product viewer dialog for this item. : ~$36.98 (often in-store only). where to buy aluminum square tubing
: Stocks hundreds of sizes available for online purchase in precut or mill lengths, with custom "Cut to Size" options for small or large quantities. These suppliers offer the widest variety of sizes,