
EBFcalc
NBC/OBC EBF calculator
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$1.99
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About
This app helps calculate the maximum permitted percentage of unprotected openings for buildings based on the National Building Code of Canada (NBC) and Ontario Building Code (OBC) tables for Part 9 and 3 buildings.
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What's New in EBFcalc
1.2
April 4, 2026
v.1.2 changes: • reviewed all OBC/NBC tables for new code versions. • bug fixes.
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