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Re: factory-made roof trusses

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> I have a project for which I need to specify pre-fabricated wood
> roof trusses (gang-nailed, pronged side-plate, or whatever is the
> current least-cost roof- framing method).  This is something I
> haven't had to do before and I have no data or names of
> manufacturers.  Any recommendations on sources or fabricators, and
> design data?
> Nels Roselund
> Structural Engineer
You should require that the fabricator be approved by a major 
jurisdiction or approved testing agency that makes onsite inspections 
to insure quality control. Some local jurisdiction enforce this 
requirement and others do not.