Steel girders for sets

[tvpirate05 1]

I'm trying to put together a film project where I'd like to use a steel girder/truss-like design for the "set". Like the ones I circled in that picture. Obviously, I can't use real beams, but I'd like to know where I could get a "look-alike" so to speak.

 

Anyone know of materials to use to build this type of setup? I'm thinking to just use balsa wood, then spray paint it. I really thought I've seen pre-made truss sets for home decor, but I'm probably wrong.

 

Thanks in advance!

[mattLAW 2]

Those girders look like they are holding up the lights.

I would check with local theatre groups in your area to see if they had any idea where those girders might be available.

matt.