The Ultimate Guide: Where to Buy 80/20 Aluminum for Your Projects Finding the right source for 80/20 aluminum—the " Industrial Erector Set

"—depends on whether you need a few pieces for a hobby or bulk supplies for a professional build. While "80/20" is a specific brand, it has become the shorthand for modular T-slot aluminum framing.

Here is the best breakdown of where to buy it based on your specific needs. 1. Direct and Specialty Retailers

: Highly recommended by the DIY community for having competitive pricing on T-slotted profiles and a massive selection of "economy" hardware like T-nuts.