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You want a gambrel truss design?
A gambrel frame is not straightforward and requires connection design to be complete
I can provide an additional service offer to design the gambrel frame and the connections and provide sketches as needed. If you accept the offer, it will take a few days to do the analysis and design on the members and connections.
I'm not allowed to discuss cost in here. I will have to submit it for you.
We can do this. You post a sketch of exactly what you want it to look like. I will then design the members as steel, showing all connections, played, sizes, welds...
After you post the sketch I will submit the offer
Wood will be much larger members and more robust connections. I can do one or the other, but not both. You can attach here with the paper clip icon.
By the time you consider material, fabrication, labor, and erection - I think steel will cost a little less. The material may cost more, but the erection should go much easier. This is never cut and dry as it often depends on the contractor pool and the local economy.