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  1. J

    Ontario Building Code - Part 3 Group C - 4 Storey Residential

    Good Afternoon All, I have what I hope is a quick question for the forum. We are designing a 4 storey detached residence in Ontario Canada. This puts the house into Part 3 and 4 of the OBC. The house has a maximum foot print of just under 150 sq m (1598 sq ft) with a set of curved stairs...
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