Top bearing floor trusses?

Those have a 2x4 laid flat for their top and bottom chords, with 2x4 installed vertically and diagonally between the top and bottom chords.

How far apart are those 2x4 -close to 2' apart?

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Jerry Peck, Construction / Litigation Consultant
Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )