To achieve maximum indicated spans, trusses may require six or more panels. Trusses with an asterisk (*) that exceed 14' in height may be shipped in two pieces.
Every MiTek truss has been individu-ally designed and that design is checked and approved by licensed engineers for structural adequacy. MiTek trusses provide more design flexibility, inside and out, than con-ventional framing.
To find maximum clear span for a given truss depth in a given loading condition, refer to the bottom line of spans shown for that particular truss depth.
Each individual floor truss design is unique based on multiple variables: geometry, loading, spacing, bearing conditions, etc. SpanTables below illustrate common combinations of the multiple variables available.
Floor TrussSpanTables These allowable spans are based on NDS 91. Maximum Dead Load = 10 psf. Bottom Chord Dead Load = 5 psf. 1 deflection is limited by L/360 or L/480 under live load. Basic
It lists the top and bottom chord sizes and maximum span lengths in feet for various roof pitches, truss depths, and load conditions. Notes provide additional information on design assumptions and limitations of the spans shown in the tables.
Roof TrussesSpanChart - The best way to calculate a roof trussspan is to use the roof trussspan table. This document provides roof trussspan tables for different roof configurations including common, mono, scissors, and flat roofs.
Roof trussspantables list allowable spans, load combinations, and recommended spacing for specific truss configurations and materials. Users should identify the truss type, design roof load (dead plus live and wind or snow), and building code jurisdiction before interpreting values.
