DIY Cheapest Mining Rig Frame for Under $15 

Building my second mining rig frame for under $20. Why spend $100 to $250 on a mining rig frame when you can make your own for a fraction of the price? Enjoy. Let me know if you have any questions.
DIMENSIONS
Posts:
3x 600mm (23.65")
2x 14.5"
2x 10"
2x 3" (will make this 3.5" if I make another frame in the future)
Base:
27.25" x 14" (you can go slightly smaller than 14" if you prefer)