We've compiled a list of the materials you'll need to build a hydroponic rail system. We've tested lots of configurations and different products and these are the ones we recommend.
Note about links: We have linked to certain products that we have found useful when building our hydroponic systems. Some of these links are affiliate links and as an Amazon Associate we earn from qualifying purchases after clicking one of these. We take care to link to products we have found to be useful - products we would recommend to a friend or family member building this system - but you are welcome to use other products instead.
Note that there are several configurations for the rails, so we've separated the materials lists based on configuration.
UPDATE: We've recently updated our design for the square rail systems to use different connection fittings. This design requires less fittings and should make it simpler to build. But both designs work great! If you are in process of building using the previous design, you can find the archived materials list here.
Square 2 Rail System
Square 4 Rail System
Round 3 Rail System
These materials and supplies are the rest of what you need to make your rail system run smoothly.
These are tools and accessories that make the build process easier.