Roof Truss Calculator Tool – OnlineBy / Roof Truss Calculator Roof Truss Calculator Roof Span (in meters): Roof Pitch (in degrees): Load Type: Live Load Dead Load Snow Load Wind Load Material Type: Wood Steel Concrete Truss Type: Fink Truss Howe Truss Pratt Truss Calculate Roof Truss Summary of Results: Roof Span: m Roof Pitch: degrees Load Type: Material: Truss Type: Estimated Load Capacity: kg Deflection: mm Estimated Material Cost: USD