New Zealand · Acceptable Solution
B1/AS1: Structural provisions for buildings
Acceptable Solution B1/AS1 for structural provisions within its stated scope under clause B1 of the New Zealand Building Code.
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- Second edition · effective 28 July 2025
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Structure
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B1 STRUCTURE ACCEPTABLE SOLUTION B1/AS1
References
Appendix A. References
For the purposes of Building Code compliance, the standards and documents referenced in this
acceptable solution must be the editions, along with their specific amendments, listed below.
Standards New Zealand Where quoted
NZS 1170.5:2004 Structural design actions – Part 5: Earthquake actions – 1.2.2.1 Comment
New Zealand
AS/NZS 2032:2006 Installation of PVC pipe systems 3.2.1.1(c)
Amendment 1
AS/NZS 2033:2008 Installation of polyethylene pipe systems 3.2.1.1(d)
Amendments 1, 2
AS/NZS 2566.1:1998 Buried flexible pipelines – Part 1. Structural design 3.2.1.1(a)
Amendment 1
AS/NZS 2566.2:2002 Buried flexible pipelines – Part 2. Installation 3.2.1.1(b)
Amendments 1, 2, 3
NZS 3604:2011 Timber framed buildings 1.2.2.1 Comment,
2.3.1.1, 2.3.2.1, 2.3.3.1,
2.3.4.1, 2.3.6.1, 2.3.6.2,
2.3.6.3, 2.3.7.1, 2.3.7.2,
2.3.7.3, 2.3.7.4, 2.3.7.5.
2.3.7.6, 2.3.8.1, 2.3.8.2
NZS 4223.4:2008 Glazing in buildings – Part 4. Window, dead, snow, and 3.3.1.2
live actions, Amendment 1
NZS 4229:2013 Concrete masonry buildings not requiring specific 1.2.2.1 Comment,
engineering design 2.1.1.1, 2.1.2.1, 2.1.3.1
NZS 4251.1:2007 Solid plastering – Part 1. Cement plasters for walls, 3.1.1.1
ceilings and soffits
NZS 4299:1998 Earth buildings not requiring specific design 1.2.2.1 Comment,
Amendment 1 2.4.1.1, 2.4.2.1, 2.4.3.1,
2.4.3.2, 2.4.4.1
NZS 4402.2.2:1986 Methods of testing soils for civil engineering purposes – 1.2.1.1(b), Definitions
Test 2.2: Soil classification tests – Determination of
liquid limit
NZS 4402.2.6:1986 Methods of testing soils for civil engineering purposes – 1.2.1.1(b), Definitions
Test 2.6: Soil classification tests – Determination of the
linear shrinkage
NZS 4431:1989 Code of practice for earth fill for residential 2.3.8.2
development
AS/NZS 4671:2019 Steel for the reinforcement of concrete 2.1.2.1, 2.3.2.1
These standards can be accessed from www.standards.govt.nz.
MINISTRY OF BUSINESS, INNOVATION AND EMPLOYMENT 28 JULY 2025 Page 17
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