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WoodWorks© Sizer software 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, some steel sections, 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, vibration, 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, Sizer 11.5, incorporates all the latest design codes and standards. It implements design provisions from the CSA O86-19 National Standard, including Update No.1 (March 2020). Load combinations and and some design provisions are from the 2020 National Building Code of Canada (NBC).
The O86-19 is referenced from NBC 2020. A program setting allows you to instead use the NBC 2015 along with the O86-19, or the CSA O86-14 along with either the 2015 or 2010 editions of the NBC, or the CSA O86-09 with NBC 2010.
Unless otherwise indicated, references in this On-line Help are to CSA O86-19 and NBC 2020.
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.