This rig can be built for triples for around $75 and $100 if you want the 4th monitor up top. In the video I explain the tools you will need, lengths of the wood members, and a verbal walkthrough of the build process.
I got a few requests to explain how I constructed my triple monitor stand so I figured I would share with everyone! I can get a bit long winded but I really wanted to cover every base and hammer some important points home.
3D plans with Dimensions: https://flic.kr/s/aHsmSr1295
Vesa mounts used: https://www.amazon.com/gp/product/B00...