Compact lattice steel for wind bracing or architectural sign?

[drscottuk]

Hi Everyone,

I am going to be designing up an architectural sign (about 6 feet high) on the edge of a coastal cliff shortly. There is a narrow continuous void between the 2 flat wafers of steel on either face. Obviously wind will be an issue.

I was wondering - are there any lattice type / corrugated compact sections on the market which I could have shaped and slotted into the void? Other than that I'll just design an array of SHS/RHS bars.

Also, are there any sheets of steel on the market with small ridges as standard? This would enable them to get away with thinner guage steel without the sheets on each face warping/caving in between the interior supports.

Thanks,

Scott