The Canadian Wood Council’s Beam Calculator has been developed for the purpose of information only. Although all possible efforts have been made to ensure that the information from this tool is accurate, the CWC cannot guarantee the completeness, accuracy or exactness of the information. Reference should always be made to the appropriate building code and/or standard. The Calculator should not be relied upon as a substitute for legal or design advice, and its user is responsible for how it is used or applied.

Beam Calculator

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Area load (kPa):Point load (kN):
Tributary width (m):
Location (m):

Designed using WoodWorks® Sizer according to the National Building Code 2015 Part 4 and the CSA O86-14 Standard - Engineering design in wood. Design must be verified by a qualified engineer.

Snow and wind loads should not include the Importance factor (O86, which is calculated using the selected Importance Category.

For other design conditions, use WoodWorks® Sizer. These include:
  • Design of solid timber, glulam, SCL, and I-joists
  • Design of columns and walls
  • Sloped, rotated and/or notched beams
  • Partial and non-uniform loads or multiple point loads
  • Moving live, storage, controlled fluids, earthquake, dead soil and hydrostatic loads
  • Deflection limits according to your application, and cantilever deflections
  • Detailed lateral restraint conditions and lateral stability design options
  • Bearing design of supporting members
  • Fire design and floor vibration design