Technical Booklet D Structure·Page 62·4C.5
Maximum floor area enclosed by structural walls
Sets limits on the floor area that can be enclosed by structural walls for stability, depending on whether structural walls are present on all four sides or only three sides.
For stability, the maximum floor area enclosed by structural walls complying with the provisions of paragraphs 4C.9 to 4C.30 should be –
(a) 70 m2 where there are structural walls on all four sides; and
(b) 36 m2 where there are only structural walls on three sides.
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