SPATIAL GRID WRAPPING A BOX

Hello all,

I'm new to GH and I would like to ask some help to design a spatial grid that wrap up a box or any other shape.

Basically I need to repeat a module –designed in Rhino– of dimension 2x2x1 meters to generate what is a very simple scaffolding. I attach few sketches to make it clearer!

What I've achieved so far made me able to manage the repetition go the module with a series component but I am not able yet to make the scaffold go around a polygon (house perimeter). 

If you can give me some tips as to how I should do this, I will really appreciate it. Thanks!!