Clause 2.1 HS or NS Form Clause 2.2 Size of HS Clause 2.3 Wall and Slab Thickness of HS and NS Clause 2.4 Location of HS Clause 2.5 HS Door Clause 2.6 Precast Hollow Core Household Shelters (Precast HS) Clause 2.7 Fixtures in HS Clause 2.8 NS in HS Tower Clause 2.9 Transfer Structure Supporting HS Tower Clause 2.10 HS Beneath An Internal Staircase Clause 2.11 Finishes in HS Clause 2.12 Exit Staircase Clause 2.13 Door Recess on HS Wall

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Clause 2.12 Exit Staircase

TRHS 2023

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Where there is only one exit staircase or exit scissors-staircase serving the non-landed houses, the minimum waist of exit staircase and the thickness of the intermediate landing slab shall be 150mm. The staircase shall be constructed of reinforced concrete.