The Ontario Building Code | Lumber Grades
9.3.2.2. Lumber Grades
(1) Except for joists, rafters, trusses and beams, visually graded lumber shall conform to the grades in Table 9.3.2.1.
9.3.2.2. Lumber Grades
(1) Except for joists, rafters, trusses and beams, visually graded lumber shall conform to the grades in Table 9.3.2.1.
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