BPIR regulations and requirements

Class 1 vs. class 2

A class 1 product under BPIR regulations is mass-produced or produced in batches to a general specification.

A class 2 product under the regulations is based on a line of products where each unit is customised to the specification of an individual client.

Each classification has slightly different disclosure information requirements under BPIR.


Examples of product types by class, without limitation:

Class 1 examples

  • Cladding (eg weatherboards, profiled metal cladding)
    • Cladding is often made up of several products that work together as a system.
    • If the cladding system meets the criteria listed above, then it is a class 1 product.
    • Some customisable cladding systems may meet the criteria for a class 2 product.
  • Mechanical fixings (eg nails, nail plates, screws, bolts, fasteners)
  • Insulation products (eg wall, ceiling and floor insulation)
  • Internal lining products (eg plasterboard, plywood)
  • Roofing products (eg profiled metal sheet, shingles, membrane roofing)
  • Structural wood-based products (eg structurally graded timber, laminated veneer lumber)
  • Structural steel and reinforcing products (eg reinforcing mesh)
  • Sanitary plumbing and drainage products, including tapware (eg shower mixers, bath spouts, toilets)
  • Low-pressure laminate and natural or engineered stone benchtops that are mass produced and contribute to compliance with the Building Code. Customised products of this kind may be class 2 designated building products
  • Fire doors and windows, fire alarms and sprinkler systems, unless these are customised for an individual building design or consumer. This includes products that may be made to customised measurements, for example, where the properties and how the product contributes to code compliance remains the same as specified in the building product’s information
  • Concrete (eg bagged concrete or mixes where the components and ratios are predetermined)
  • Flashings, where these are “ready-made” and not customised for an individual building design or consumer
  • Most timber, even if cut to specific lengths for an individual building design or consumer, as the product’s broad properties, and therefore the building product’s information, will be the same in most cases
    • If changing the dimensions of a product changes the way it contributes to building code compliance, then it may be a class 2 product.

Class 2 examples

  • External window joinery, doors, and skylights that have been customised to the specifications of individual clients (eg specifications on dimensions and glass type)
  • Customised concrete mixes for a specific building or application
  • Fire doors and windows (or other specialty doors), fire alarms or sprinkler systems that have been necessarily customised for an individual building design or consumer.


Source: MBIE's Guide to complying with the Building (Building Product Information Requirements) Regulations 2022 (version 1)

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