Table 9.23.4.3.Maximum Spans for Steel Beams Supporting Floors in Dwelling Units Forming Part of Sentence 9.23.4.3.(1) Table 9.23.4.3. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. Similar articles Basement Floors Vapour Barrier Materials Gypsum Board Supporting Insulation 3 Way light Switch Controlling Multiple Lights Diagram