Build Instructions for Pergola With Steel I Beams?
 

Does anyone have links to some architectural designs and/or build
instructions for pergolas built with steel I beams? I'm thinking of a
simply design with four steel I beam posts, four cross beams, and then
creating the shade by hooking some kind of decorative cloth underneath.
The cloth can have its color or texture periodically changed, making it easy
to keep the pergola looking like new.

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W