Check out the angle iron ... you can find it in pretty much any size. It also doesnt have to be steel or iron ... Ive seen it in aluminum but its a bit more spendy. Aluminum will be easier to drill, but if you get precise memasurements and a few drill bits you can drill through the harder metals. It should be grouped up with the flat metal.


I prefer wood as I tend to either cut myself or hit myself a few times and break stuff around the house (unintentionally) when working with metal. At least wood has a little give to it.

Bryan