Maximum Spans for Hem – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1)
    Maximum Spans for Hem – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1) Table A-14 Forming Part of Sentences 9.23.12.3.(1) and (3) and 9.37.3.1.(1) Notes to Table A-14: (1) Where structural sheathing is used, lintel spans may be increased by 15%.  Structural sheathing consists of a minimum 9.5 mm thick structural panel […]  
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