Building Regulations Approved document A - Structure (1992 edition)

Building Regulations Approved Document A - Structure (1992 edition)
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This Building Regulations Approved Document which took effect on 1 June 1992, contains the following sections:


Loading and Ground Movement – The Requirement A1 and A2

•        Section 1: Sizes of structural elements for certain residential buildings and other small buildings of traditional construction

•        Section 1A: Basic requirements for stability

•        Section 1B: Sizes of timber floor, ceiling and roof members in single family houses

o        Application

o        The use of this section

o        Spans, sizes and spacings for timber members

•        Section 1C: Thickness of walls in certain small buildings

o        Application

o        Wall types

o        The use of this section

o        Thickness of walls

o        Conditions relating to the building of which walls form part

o        Conditions relating to the wall

o        Construction materials and workmanship

o        Loading on walls

o        End restraint

o        Openings, recesses, overhangs and chases

o        Lateral support by roofs and floors

o        Interruption of lateral support

o        External walls of small single storey non-residential buildings and annexes

•        Section 1D: Proportions of masonry chimneys above the roof surface

o        Height to width relationship

•        Section 1E: Strip foundations of strip concrete

o        Conditions relating to the sub-soil

o        Design provisions

o        Minimum width of strip foundations

•        Section 2: External wall cladding

•        Section 3: Re-covering of roofs

•        Section 4: Codes, standards and other references for all building types

o        Loading

o        Structural work of timber

o        Structural work of masonry

o        Structural work of reinforced, pre-stressed or plain concrete

o        Structural work of steel

o        Structural work of aluminium

o        Ground movement

o        Existing buildings


Disproportionate Collapse – The Requirement A3

•        Section 5: Reducing the sensitivity of the building tot disproportionate collapse in the event of an accident

Source:   ODPM  

              (Crown copyright material is reproduced with the permission of the Controller of HMSO and the Queen's Printer for Scotland.)


For more information on this source please visit Office of the Deputy Prime Minister

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