Canada Mortgage and Housing Corporation acknowledges the individuals and organizations that contributed to this latest edition of Canadian Wood-Frame House Construction. The following people served as reviewers and performed the important role of ensuring the accuracy and usefulness of the publication for homeowners, builders and educators. Richard Lind, Everts Lind Enterprises, Lunenberg, N.S. David Ricketts, RDH Building Engineering Ltd., Vancouver, B.C. CMHC also expresses its appreciation to John Burrows of JF Burrows Consulting Inc., who updated this edition to conform to the 2010 National Building Code of Canada (NBC) and to the energy efficiency requirements in the 2012 Interim Changes to the 2010 NBC, and who enhanced this edition significantly by adding new features. CMHC gratefully acknowledges the National Research Council and the Canadian Wood Council for the use of their information included in the tables of this publication. Jasmine Wang, Canadian Wood Council Chris McLellan, Natural Resources Canada Barry Craig, CMHC Policy and Research Division Canada Mortgage and Housing Corporation i