• Member Directory
  • Contact
wwpa-logo
  • Buyers Guide
  • Western Lumber Western Lumber
    • Western Lumber
    • Structural Lumber
    • Appearance Lumber
    • Factory Lumber
    • Western Species
    • Interpreting Grade Stamps
    • Design & Application
  • Resources Resources
    • Resources
    • Western Lumber Resource Library


      Statistical Reports Subscriptions


      WWPA Grade Rule Book


      Mold and Wood Products


      California Fire Code


      California Proposition 65 Notification Requirements


      Why Wood


  • About WWPA About WWPA
    • About WWPA
    • Overview
    • Services
    • Membership
    • Associate Membership
    • Member Directories
    • News & Events
    • Industry Links
    • Annual Meeting
    • Redwood Inspection Service
    • Careers
  • Login
  • About WWPA
  • News & Events
  • DESIGN VALUES FOR U.S. and CANADIAN SPECIES GROUP COMBINATIONS
  • Overview
  • Services
    • Member Services
    • Quality Assurance
    • Technical Support
    • Market Services
    • Contracted Services
    • Prop 65 Notification Service
  • Membership
  • Associate Membership
  • News & Events
  • Industry Links
  • Annual Meeting
  • Redwood Inspection Service
  • Careers

DESIGN VALUES FOR U.S. and CANADIAN SPECIES GROUP COMBINATIONS

Jul 18, 2025

WWPA has updated the publication DESIGN VALUES FOR U.S. and CANADIAN SPECIES GROUP COMBINATIONS to the recent revisions of design values for Hem-Fir (North). 

In April 2025, the National Lumber Grades Authority in Canada lowered the design values for Hem-Fir (North) as the result of their routine monitoring and assessment process. These values are reflected in the base values, size adjusted values and span tables shown in this updated publication.

The updated publication is available for free download at the WWPA website www.wwpa.org.


From Softwood Lumber Board

SLB-Supported Accelerators Drive Lumber Market Growth

The Bunker Hill Housing Redevelopment in Boston is an influential showcase for the potential of wood construction. The transformation of 42 1940s-era buildings into a sustainable, mixed-income residential community will include a six-story affordable housing project built with a cross-laminated timber floor and roof system and a nine-story mass timber and steel hybrid building.

To read the complete article, visit the Softwood Lumber Board website

Western Wood Products Association represents softwood lumber manufacturers in the 12 Western states and Alaska.

Main Menu

BUYERS GUIDE

WESTERN LUMBER

LIBRARY

ABOUT WWPA

LOGIN

Top Pages

DOUGLAS FIR

SPANS

Mold and Wood Products

GRADE STAMPS

Contact

Western Wood Products Association
2 Centerpointe Drive, STE 360
Lake Oswego, OR 97035
Phone: 503-224-3930
Fax: 503-224-3935
Email: info@wwpa.org

1996-2026 © WWPA. ALL Rights Reserved. | Privacy Policy | Terms of Service | info@wwpa.org