Interesting material usage?

[asid61]

We used 1/2" x 1/2" x 1/16" angle to build our ramp.
After making it, I now firmly believe that angle is magic. The ramp weighed very little but could hold around 50-60lbs easily, and it was just a big triangle supported by smaller triangles made of angle.

[BeardyMentor]

Originally Posted by asid61

We used 1/2" x 1/2" x 1/16" angle to build our ramp.
After making it, I now firmly believe that angle is magic. The ramp weighed very little but could hold around 50-60lbs easily, and it was just a big triangle supported by smaller triangles made of angle.

I think you mostly just discovered the power of the truss. Triangles are magic when it comes to making something stronger.