How To Make Bed Rails. The rails should have an inside edge where the wooden slats will lay. (The mattress will lay on these slats.) These boards can be purchased with the edge already glued onto the wood. One side of the bed sits against the wall so I didn't bother with rails.
I saw a couple ideas regurgitated over and over again. That's a great question, because it can be hard to do. I found some super affordable bed frame rail hardware here.
Truck Bed Rail Sides for Hauling: Do you want to add more room to your truck bed and be able to haul more in it, but you don't want to spend hundreds of dollars on steel contractor rails?
Use two plates on each end to make a sturdy bed frame.
When making rails, it is important that the iron ingots and the stick are placed in the exact pattern as the image below. Just create slots in the head and foot-boards. Pre-cut wood can be purchased at a lumber yard.