****  This issue/question has been resolved “The Truss Company” based in Sumner, WA found the archived truss design package and sent the PDF to me.***

I recently got a permit to convert unheated garage space to heated living space.  The garage has attic/storage trusses above the area we are converting to living space and the granting authority wants us to get an opinion from an engineer on how much weight the storage trusses were designed for.  We don’t have the original truss design package and the company that made the trusses can’t find the info.  

Is there an engineer in the state of Washington that could do this based on either a site visit or us providing information as needed after reviewing the attached PDF?

The garage was built in 2004

The attic truss is similar to a truss I found in a 2006 discussion forum where BossHog had some helpful info.  

https://www.finehomebuilding.com/forum/weight-supported-by-trusses

https://www.finehomebuilding.com/profile/BossHog