Natural Stone Floors & Deflection

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Conditions like deflection and vibration can occur in metal plate connected wood trusses even if they meet the building code and adequately transfer loads.
When stone flooring is installed over wood frame construction, deflections not exceeding L/720 are recommended.
The Building Designer is responsible for providing the deflection criteria and on-center spacing requirements to limit deflections.
If no building design information is given, truss technicians should not assume deflection criteria of L/360.