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WoodWorks© Sizer is used to size constant cross-section structural members and to perform preliminary whole-structure modeling and design.
Sizer designs beams, columns, joists, wall studs, or solid wall and floor panels made with sawn lumber and timber, glulam, structural composite lumber (LVL, LSL or PSL), wood I-joists, and cross-laminated timber (CLT).
In Beam Mode and Column Mode, Sizer generates load combinations, performs rigorous load, stress, and deflection analysis, and provides detailed shear, bending moment, axial, bearing, deflection, and fire endurance design results for single structural members.
In Concept Mode, Sizer performs simple gravity load distribution in a structure composed of these members, and then designs the members by group or individually. Single members can be exported to Beam and Column mode for detailed analysis.
Please refer to the resources described in Help Documentation for operating instructions and program capabilities and limitations. Other resources are described in Technical Support and Training.
Sizer Versions and Design Codes and Standards
The most recent version, Version 13.2, incorporates all the latest design codes and standards. It conforms to IBC 2024, NDS 2021 and ASCE 7-22, and also allows you to design according to IBC 2021, NDS 2018 and ASCE 7-16.
Sizer 12.4 and 11.3 are are available to registered users in jurisdictions who have not yet adopted IBC 2021. Sizer 12.4 references IBC 2018 but there are no substantive differences from the IBC 2021 option in version 13.2. Sizer 11.3 conforms to IBC 2015, NDS 2015, and ASCE 7-10.
WoodWorks should not be used or relied upon for any general or specific application without competent professional examination and verification of its accuracy, suitability and applicability by a licensed professional engineer, designer, or architect.
Every effort has been made to ensure the information and procedures in the program are as complete and as accurate as possible. The Canadian Wood Council, the American Wood Council., and Acronym Software Inc., do not, however, assume any responsibility for errors or omissions in the software nor for engineering designs or plans prepared from it.