References

Materials – Interior

244 sources in the library on materials – interior. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 3 of 7.

1. strong RN-8L5W2Y

   BSI

   The manufacturing specification for a domestic timber staircase, published 30 June 1989 and still current. BS 585-1 sets materials and construction requirements for stairs built of timber, which may include plywood risers and treads, edge-to-edge jointed timber and glue-laminated components, for use inside one-family dwellings, and covers straight flights, winder flights and quarter or half landings. Its scope excludes open-riser stairs and stairs wider than 1.22 m, so a note on open-tread or wide feature stairs cannot rely on it.

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2. strong RN-SZF0CB

   BSI

   BS 8000-11:2011, published 31 January 2011, committee B/539, current. It gives recommendations on basic workmanship on building sites, both commercial and domestic, for the tasks frequently carried out in wall and floor tiling. It applies to fixing ceramic and agglomerated stone tiles, natural stone and terrazzo tiles and slabs, and mosaics to walls and floors using adhesive and mortar. It states plainly that its recommendations are not necessarily comprehensive and that a project specification might need to cover more. It signposts the rest of the family: design aspects of wall and floor tiling are in BS 5385, natural stone cladding and lining in BS 8298, and the harmonised product specifications are BS EN 12057 for natural stone tiles, BS EN 12058 for slabs, BS EN 14411 for ceramic tiles, BS EN 15285 for agglomerated stone and BS EN 12004 for adhesives, with BS EN 12440 for natural stone naming.

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3. strong RN-O5AVR2

   BSI

   The workmanship code that a joiner fitting alcove cupboards, wardrobes, skirting, architrave and door linings is expected to work to. BS 8000-5:1990, published 31 May 1990 and still listed as current, gives recommendations on basic site workmanship for carpentry, joinery and general fixings, including storage and handling of timber on site, nailing, accuracy and general fixings. Committee B/543, ISBN 0 580 18280 0, ICS 91.200.

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4. strong RN-MHGOJ2

   BSI

   The long-standing dry lining and stud partition code, useful to cite but important to date correctly: BS 8212:1995 was published 15 January 1995 and was withdrawn on 25 January 2023, so a note should not present it as current practice. Its scope covers plasterboard wall and ceiling linings, partitions, fixings and nails, board thickness and mass, tolerances, and the fire resistance, sound insulation and thermal insulation contributions of plasterboard systems. Committee B/544, ICS 91.060.10.

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5. strong RN-ATZB5V

   BSI

   The standard behind internal noise level targets quoted for bedrooms and living rooms, published 28 February 2014 and current. BS 8233 gives guidance on the control of noise in and around buildings and applies to the design of new buildings and to refurbished buildings undergoing a change of use. It expressly does not cover assessing the effect of changes in external noise on occupants of an existing building, specialist applications such as auditoria and cinemas, which fall to BS ISO 9568, vibration control except where it appears as radiated sound, or noise breaking out of a building to external receptors. A note about soundproofing an existing room should therefore treat it as a design reference, not as a compliance test.

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6. strong RN-WB8W9O

   BSI

   The reference standard behind anchor and fixing selection into brick, block and concrete, published 31 October 2012 and shown as withdrawn on 17 March 2021, so cite it as the code the fixings trade still works to rather than as a current standard. It gives recommendations for the safe selection and installation of anchors in concrete and masonry for designers, specifiers, manufacturers, contractors, installers and testers, and applies in particular to safety-critical applications. It is restricted to anchors inserted into drilled holes and covers pull-out and tensile site testing. Committee B/514, ICS 21.060.99 and 91.080.40.

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7. strong RN-ATYI6K

   BSI

   BS EN 13279-1:2008, published 30 June 2009, committee B/544, under review; it supersedes BS EN 13279-1:2005. The BSI overview states it is the first part of the BS EN 13279 series and specifies the characteristics and performance of powder products based on gypsum binder for building purposes, including premixed gypsum building plasters for plastering walls and ceilings inside buildings where they are applied as a finishing material that can be decorated, formulated with additives, admixtures, aggregates and other binders, for both manual and mechanical application. It also applies to gypsum binders for direct site use and for further processing into gypsum blocks, plasterboards, fibre-reinforced boards, fibrous plasterwork and ceiling elements, and to gypsum mortar for internal non load-bearing partitions not exposed to water. It states that building lime as calcium hydroxide may be used as an additional binder, and draws the boundary clearly: where gypsum binder is the principal active binding component the plaster is covered here, and where building lime is the principal binder the plaster falls under EN 998-1. It expressly notes that calcium sulfate used as the binder for floor screeds is not covered by this standard.

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8. strong RN-8EWQAQ

   BSI

   The companion test standard to BS EN 13279-1, published 31 January 2014, current and under review. BS EN 13279-2 describes the reference test methods for all gypsum binders and gypsum plasters covered by EN 13279-1, which is how a bagged plaster's declared setting time, strength and fineness are actually measured. Committee B/544, ICS 91.100.10, identical to EN 13279-2:2014, ISBN 978 0 580 82054 0. Cite it alongside BS EN 998-1 when a note needs to separate gypsum plasters from lime and cement based rendering and plastering mortars.

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9. strong RN-9FWETU

   BSI

   The internal plastering half of the BS EN 13914 pair, the external rendering half of which is already a common citation. This edition was published 20 June 2005 and withdrawn on 31 July 2016, so check the current edition before quoting it. Its scope covers design considerations and essential principles for internal plastering, including gypsum plaster, lime, cement and anhydrite based systems, backgrounds and surface treatment, finishes and inspection. Committee B/544, ICS 91.100.10. It is the reference for why a lime plaster on a solid wall behaves differently from a gypsum skim.

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10. strong RN-8QIL1K

    BSI

    The harmonised product standard for solid timber cladding, which is what a UKCA or CE marked cladding board is declared against. Published 30 Jun 2020, Current, with Designated status for UKCA marking. Its scope defines and specifies the relevant characteristics and the appropriate test methods for solid wood products used as panelling and cladding, including siding, for wall and ceiling panelling for internal use and wall and ceiling cladding for external uses. Because it is the harmonised standard, a cladding board sold without a declaration of performance against it, including thermally modified boards sold as Thermowood, is not being marketed on the same basis as one that is.

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11. strong RN-B8GMT1

    BSI

    The European test that an EI 30 or E 30 fire door rating comes from, and the standard the UK fire door trade is moving to in place of BS 476-22. Published 31 August 2018 as BS EN 1634-1:2014+A1:2018 and shown as current but under review, it specifies the method for determining the fire resistance of door and shutter assemblies and openable windows installed in openings in vertical separating elements, covering hinged and pivoted doors, horizontally and vertically sliding doors including articulated and sectional doors, folding and sliding folding doors and shutters, tilting doors, rolling shutter doors, openable windows and operable fabric curtains.

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12. strong RN-N6ZC3R

    BSI

    BS EN 520:2004+A1:2009, published 22 November 2004 with Amendment 1 in 2009, committee B/544, under review. Clause 1 specifies the characteristics and performance of gypsum plasterboards for building construction, including boards intended for secondary manufacturing operations and boards designed to receive either direct surface decoration or gypsum plaster. The product performance characteristics it covers are reaction to fire, water vapour permeability, flexural strength (breaking load), impact resistance and thermal resistance. It separates out the characteristics that belong to the assembled system rather than the board alone, and are measured on assemblies simulating end use conditions: shear strength, fire resistance, impact resistance, direct airborne sound insulation and acoustic absorption. It also covers additional technical characteristics important for the use and acceptance of the product by the construction industry, the reference tests for them, and evaluation of conformity. This is the standard that defines the plasterboard type letters a merchant lists, so cite it for fire-resistant, moisture-resistant and higher-density board claims.

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13. strong RN-2YUIH4

    BSI

    The classification and selection standard for wood coatings, published 30 June 2013, which underpins the distinction a note has to draw between a primer, an undercoat, a stain and a finish on timber. BS EN 927-1 classifies coating materials and coating systems for exterior wood by end use and by film properties, and sets the selection criteria that decide whether a system is suitable for stable, semi-stable or non-stable joinery, which is the technical basis for saying a window or door needs a different paint system from an internal skirting.

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14. strong RN-EADB24

    BSI

    The standard behind the appearance grades quoted for joinery timber (classes J2, J10, J30, J40, J50 by permitted knot size). BS EN 942:2007, published 30 March 2007, specifies general requirements for timber in joinery, in particular grading and classification by appearance quality of joinery products or individual joinery parts, and covers solid, finger-jointed, end-jointed, edge-jointed and laminated timber. It is applied at the time of manufacture and expressly excludes strength and durability, which are covered elsewhere.

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15. strong RN-6MV3YZ

    BSI

    The first part of the ceramic tile test series, published 31 October 2014, which sets how tiles are sampled from a delivery and the basis on which a batch is accepted or rejected against the declared characteristics. It is the standard to cite when a note explains that shade variation, calibre and warpage complaints are judged on a sampled batch rather than on a single tile, and it underpins the rest of the BS EN ISO 10545 series including part 3 for water absorption, which is the figure that separates porcelain from other ceramic tiles.

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16. strong RN-4U19YG

    BSI

    The classification behind the type and class codes on a sealant cartridge, published 10 December 2003 with amendment A1 in 2011. BS EN ISO 11600 classifies jointing sealants for building construction into type F for facade use and type G for glazing, and grades them by movement capability class, which is the figure that decides whether a silicone or acrylic is fit for a bath or shower joint that flexes. It is the standard a note should cite when it distinguishes a low-movement decorator's caulk from a sanitary-grade silicone rather than relying on packaging claims.

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17. strong RN-J699CC

    BSI (British Standards Institution)

    STATUS: CURRENT. BS 1202-1:2002 was published 7 February 2002 under committee B/518, ISBN 0 580 37316 9, and specifies the requirements, including dimensions and finish, for steel nails. It divides them into wire nails, of which it lists 14 types from convex head roofing nails to duplex head nails with round, square, annular ringed and helical threaded shanks and chisel or diamond points, and cut nails, of which it lists two types, cut clasp nails and cut floor brads. This is the standard behind a specification such as galvanised round wire nails to BS 1202-1, and it is the reference used when BS 5534 calls up nail types for tile and slate fixing. Parts 2 and 3 (both 1974) cover copper nails and aluminium nails. Catalogue page confirms number, title, date, status, committee and the type lists; dimensional tables are paywalled.

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18. strong RN-I3E8M9

    BSI (British Standards Institution)

    STATUS: CURRENT. BS 6222-2:2009+A1:2017 (base edition published 31 January 2009, amended 2017) specifies the performance requirements and test methods for the strength and durability of the structure of domestic and residential fitted kitchen units, peninsular units, island units and breakfast bars. It EXCLUDES free standing units and storage furniture for other applications, and it does not cover worktop or storage unit safety, which sit in BS EN 14749:2016+A1:2022, Furniture. Domestic and kitchen storage units and kitchen worktops. Safety requirements and test methods. Together with BS EN 1116:2018 for coordinating sizes this is the pair a kitchen note should cite: BS EN 1116 for whether a unit fits, BS 6222-2 for whether its carcass will survive use. Catalogue page confirms number, title, date, status and scope; the tests are paywalled.

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19. strong RN-445W51

    BSI (British Standards Institution)

    The accessibility code of practice that Approved Document M sits alongside. Paywalled, so only the catalogue page is public; it confirms BS 8300-2:2018, published 31 January 2018, status Current, and that it is part 2 of a two-part standard, with BS 8300-1:2018 (also published 31 January 2018, also Current) covering the external environment including parking, setting-down points, access routes and approaches to entrances. Part 2 covers external features affecting external access routes, and building interiors including entrances, reception facilities, horizontal and vertical movement and building facilities. Crucially for a home renovation note, the catalogue page states plainly that BS 8300-2 does NOT apply to individual dwellings; its residential scope is nursing, residential and care homes, student accommodation and the COMMON PARTS of blocks of flats. It also confirms the recommendations apply largely to new buildings but can be used to assess and improve existing ones, and that the extent to which they apply to listed and historic buildings is decided case by case.

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20. strong RN-60JOUR

    BSI (British Standards Institution)

    STATUS: WITHDRAWN on 21 November 2025, superseded by BS 8524-1:2025. BS 8524-1:2013 was published 30 April 2013 and itself replaced PAS 121, which was withdrawn 31 July 2013. It specified requirements for the design, testing and classification of active fire curtain barrier assemblies installed to the recommendations of BS 8524-2, covering reliability and durability, fire resistance, smoke containment and impact resistance of the assemblies, their control devices and ancillary equipment, for curtains of any material. Its two stated functions are maintaining compartmentation against fire and smoke spread, and giving access to escape routes while preserving fire resistance and limiting smoke into protected corridors and shafts. Any note quoting BS 8524-1:2013 or BS 8524-2:2013 is now naming a withdrawn edition and should be updated to the 2025 parts. Catalogue page confirms number, title, publication and withdrawal dates and scope; the requirements are paywalled.

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21. strong RN-1PGUPY

    BSI (British Standards Institution)

    STATUS: CURRENT. BS EN 1116:2018 was published 28 February 2018, is identical to EN 1116:2018, ISBN 978 0 580 94536 6, and supersedes BS EN 1116:2004. It specifies coordinating sizes for kitchen units, worktops, recess panelling, furniture fronts and decorative panels, and for kitchen appliances (white goods and ovens) and further installation elements such as sinks, giving the height, width and depth dimensions and the space needed to integrate an appliance into a unit. This is the standard behind the 600 mm module and standard carcass depths that make an integrated appliance fit a run of units, and it is what a note should cite when explaining why a replacement dishwasher or oven fits an existing housing. It does not cover commercial kitchens in hotels or restaurants. Catalogue page confirms number, title, date, status, ISBN and scope; the dimension tables are paywalled.

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22. strong RN-VKPEGH

    BSI (British Standards Institution)

    STATUS: CURRENT (marked Under Review). BS EN 12150-1:2015+A1:2019 was published 31 May 2019 and supersedes BS EN 12150-1:2015, which had itself replaced BS EN 12150-1:2000. It establishes tolerances, flatness, edgework, fragmentation and the physical and mechanical characteristics of monolithic flat thermally toughened soda lime silicate safety glass for use in buildings. Curved toughened glass is described in Annex A but is not part of the standard, and glass built into laminated or insulating glass units, or coated after toughening, falls under the relevant assembly product standard instead. Part 2 (BS EN 12150-2) covers evaluation of conformity. The catalogue page confirms number, title, date, status and scope; the test detail is paywalled.

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23. strong RN-Y2B7CC

    BSI (British Standards Institution)

    STATUS: CURRENT. BS EN 13893:2002 was published 28 November 2002, is identical to EN 13893:2002, ISBN 0 580 40862 0, committee PRI/60, ICS 97.150. It specifies the method for measuring the dynamic coefficient of friction on DRY surfaces of resilient, laminate and textile floor coverings, and gives the DS classification that vinyl, laminate and carpet manufacturers declare. The key limitation for a note is in the title: it is a dry test, so a DS rating says nothing about wet slip performance in a bathroom or kitchen, where the relevant measure is the pendulum test value from the UK Slip Resistance Group method (formerly BS 7976-2, now withdrawn) or the ramp test classifications R9 to R13. Catalogue page confirms number, title, date, status, ISBN, committee and scope.

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24. strong RN-OEMEFD

    BSI (British Standards Institution)

    STATUS: CURRENT (marked Under Review). BS EN 14179-1:2016 was published 31 August 2016 and supersedes BS EN 14179-1:2005, which is withdrawn. It specifies the heat soak process system plus the tolerances, flatness, edgework, fragmentation and physical and mechanical characteristics of monolithic flat heat soaked thermally toughened soda lime silicate safety glass for buildings. Its purpose is the point a note should make: ordinary toughened glass to BS EN 12150-1 carries a residual risk of spontaneous breakage from nickel sulphide inclusions, and the heat soak process to BS EN 14179-1 is what reduces that risk, which is why heat soaked glass is specified for overhead glazing, balustrades and large frameless panes. Curved heat soaked glass is excluded. Catalogue page confirms number, title, date, status, supersession and scope; the process detail is paywalled.

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25. strong RN-GIC2HB

    BSI (British Standards Institution)

    STATUS: CURRENT (marked Under Review). BS EN 14449:2005 was published 10 February 2006, is identical to EN 14449:2005, ISBN 0 580 46084 3, ICS 81.040.20, committee B/520. It specifies the evaluation of conformity and the factory production control for laminated glass and laminated safety glass used in buildings, including requirements that may be subject to regulation, and it notes that glass products incorporating electrical components may also fall under other directives such as the Low Voltage Directive. It is the conformity companion to the BS EN ISO 12543 series, which sets the product requirements: a note should cite BS EN ISO 12543-2 for what laminated safety glass must achieve and BS EN 14449 for how a manufacturer demonstrates and marks conformity. Catalogue page confirms number, title, date, status, ISBN, committee and scope.

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26. strong RN-PB0KJ4

    BSI (British Standards Institution)

    STATUS: CURRENT (marked Under Review). BS EN 204:2016 was published 31 August 2016 and supersedes BS EN 204:2001. It classifies thermoplastic resin based wood adhesives for non structural use into four durability classes, D1 to D4, by the strength of the bond line under specified test conditions, and it applies to adhesives for bonding furniture and interior structures, panelling, doors, windows and stairs made of wood or wood based products. The class is the practical point for a note: D1 is dry interior use only, D2 occasional short term dampness, D3 frequent dampness or exterior sheltered use, D4 frequent severe exposure. It does not cover temperature resistance of the bond line, and it is not a structural adhesive standard (that is BS EN 301 and BS EN 15425). The 2016 revision removed the thick bond line test references and moved assessment to 20 test pieces. Catalogue page confirms number, title, date, status, the D1 to D4 classes and scope.

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27. strong RN-CG3QHH

    BSI (British Standards Institution)

    STATUS: CURRENT (marked Under Review). BS EN 459-1:2015 was published 30 April 2015 and supersedes BS EN 459-1:2010, which superseded BS EN 459-1:2001. It defines the types of building lime and their classification and sets the chemical and physical requirements and conformity criteria for each. Building lime falls into two families: air lime (which sets by carbonation) and lime with hydraulic properties (which sets by hydration and is classified by mechanical compressive strength), the latter covering natural hydraulic lime, formulated lime and hydraulic lime with the assessment and verification of constancy of performance rules for each. It applies to lime for mortar, for calcium silicate bricks, autoclaved aerated concrete and concrete, and for civil engineering. This is the standard behind the NHL 2, NHL 3.5 and NHL 5 designations quoted in lime mortar and lime plaster notes; terms of delivery and contract conditions are outside its scope. Parts 2 (test methods, 2021) and 3 (conformity evaluation, 2015) complete the series. Catalogue page confirms number, title, date, status and scope; the class tables are paywalled.

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28. strong RN-KP1GD0

    BSI (British Standards Institution)

    STATUS: WITHDRAWN on 28 February 2014. BS EN ISO 140-4:1998 was published 15 October 1998 and gave the methods for measuring the airborne sound insulation of interior walls, floors and doors between two rooms on site, producing frequency dependent values that are converted to a single number rating using ISO 717-1 so that performance can be compared against a specification. It was replaced by the BS EN ISO 16283 series, with BS EN ISO 16283-1 covering field measurement of airborne sound insulation, and the laboratory measurements formerly in other parts of BS EN ISO 140 moving to BS EN ISO 10140. Any note describing a pre completion sound test to BS EN ISO 140 is quoting a standard withdrawn in 2014: Approved Document E testing is now to the BS EN ISO 16283 series with rating to BS EN ISO 717. Catalogue page confirms number, title, publication date, withdrawal date and scope.

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29. strong RN-LO5VGF

    BSI (British Standards Institution)

    STATUS: CURRENT. BS EN ISO 717-1:2020 was published 31 December 2020 and supersedes BS EN ISO 717-1:2013, which is withdrawn. It defines the single number quantities for airborne sound insulation in buildings and building elements, that is the method for converting a frequency dependent measurement into one figure, and it covers spectrum adaptation terms for different noise sources including internal noise and external traffic noise. The 2020 revision moved content in from ISO 10140-1:2016 and ISO 10140-5:2010 and updated the references. This is the standard behind the Rw, DnT,w and DnT,w + Ctr figures quoted in soundproofing notes and in Approved Document E, and its companion BS EN ISO 717-2:2020 does the same for impact sound (Lnw, LnT,w). Catalogue page confirms number, title, date, status, supersession and scope; the calculation method is paywalled.

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30. strong RN-JLU4G9

    Fire Door Inspection Scheme

    The register a homeowner or landlord uses to find an independently certificated fire door inspector. FDIS was launched in 2012 as a training and certification programme in fire door safety and maintains a searchable database of certificated fire door inspectors. It states that it is the first and only fire door inspection scheme accredited by UKAS to BS EN ISO/IEC 17024:2012, the conformity assessment standard for bodies certifying persons, which is the point a note should make when explaining why a certificated inspector differs from any tradesperson offering a fire door check.

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31. strong RN-WOP4JZ

    Robust Details Ltd

    The scheme that lets a builder skip pre-completion sound testing by registering a certified separating wall or floor construction instead, and the practical answer for a note that says a converted flat must pass a sound test. The site publishes an introduction to the scheme, the Robust Details Handbook containing the full specification for each detail, and the registration process for new houses and flats, with separate routes signposted for Scotland and Northern Ireland because the underlying regulations differ there. A registered Robust Detail must be built exactly as specified, which is why floor build-up and underlay substitutions matter.

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32. strong RN-6FMWAM

    UKAS

    The body that sits one level above every certification mark a product carries, and the answer to the question of who checks the checkers. UKAS states that it is the National Accreditation Body for the United Kingdom, appointed by government to assess and accredit organisations providing services including certification, testing, inspection, calibration, validation and verification. Its site carries a searchable directory of accredited organisations, an explanation of the difference between accreditation and certification, and an impartiality statement. This matters for the insulation and cladding clusters in particular: a performance claim tested at a UKAS accredited laboratory, or certified by a UKAS accredited certification body such as the BBA or WRAS, sits on a different footing from an in-house test result or a self-declared figure, and the directory lets that be checked rather than assumed.

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33. good RN-RYJ6RE

    British Healthcare Trades Association

    The UK trade association for healthcare and assistive technology suppliers, which is the body behind stairlifts, through-floor lifts, level access showers and other adaptations a renovation may include. It runs a member directory, a Chartered Trading Standards Institute approved code of practice with a consumer complaints and arbitration route, consumer advice and guidance, and a government grants finder that is a legitimate starting point for a reader asking who pays for an adaptation. Contact 020 7702 2141. Use it for finding a code-bound supplier and for the complaint route, not for prices.

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34. good RN-CIST1X

    British Healthcare Trades Association

    The consumer code that covers stairlift suppliers, which is what a note about buying a stairlift should point a reader to rather than a review site. The BHTA states its code was the first in the healthcare industry to be approved by the Chartered Trading Standards Institute under the Consumer Codes Approval Scheme, and that it sets standards for member behaviour, customer service, approach to sales and terms and conditions relating to refunds, commits members to high quality aftersales service, and provides independent arbitration at no cost to the consumer. It sits on ten underlying principles and is backed by a published complaints procedure against members.

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35. good RN-CRNC90

    British Woodworking Federation

    The trade body's own definitions for the vocabulary a joinery note has to use precisely, with illustrations. It defines baluster, balustrade, banister, newel, nosing, going, riser, tread and string for staircases; casing, jamb, reveal, stile, muntin and horns for doors; skirting or skirting board, dado, staff bead, moulded wood and beaded wood for mouldings; and stud, stud partition, nogging, head plate and wall plate for partitions. It also separates the board materials a fitted wardrobe might use, including blockboard, laminboard, battenboard, particle board, fibreboard, hardboard, mediumboard, plywood, OSB, LVL and glulam.

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36. good RN-KFRZZW

    BWF Fire Door Alliance (British Woodworking Federation)

    Sets out which rule applies where across the four UK nations: Approved Documents in England and Wales, Technical Handbooks under the Scottish Building Standards, and Technical Booklets in Northern Ireland, all applying to new buildings and to alterations, extensions or change of use. Existing non-domestic buildings, including the common parts of blocks of flats and houses in multiple occupation, are governed instead by the Regulatory Reform (Fire Safety) Order 2005, which replaced over 70 pieces of fire safety law and came into force in 2006 and places fire risk assessment on a named responsible person. Regulation 38 of the Building Regulations links the two regimes.

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37. good RN-2RXULH

    BWF Fire Door Alliance (British Woodworking Federation)

    Establishes that a fire door is a complete assembly, not just a leaf: frame, leaf or leaves, essential hardware, edge seals, glazing and any integral side or fanlight panels, tested as a complete assembly in a furnace. It distinguishes a fire doorset, supplied as a pre-assembled complete unit from a single source with all compatible components and glazing fitted in the factory, from a fire door assembly, built on site from components sourced from different suppliers. Essential ironmongery means hinges, closers, locks and latches, all of which must have been present when the door was tested and certificated; non-essential items such as viewers and letterplates must follow the manufacturer's instructions.

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38. good RN-PMOFN3

    Construction Fixings Association

    The trade body library a note should point a reader to for load ratings and safe use of anchors. The CFA has published a series of free guidance notes on fixings since 1994, covering anchor selection, safe use, developments in fixing design and the approvals available for construction fixings, including a note on post-installed rebar connections using injection resin mortars. Download requires a free account. The CFA also runs a fixings academy, a distributor directory and a register of testers, which is the route to on-site proof testing of anchors in an unknown substrate.

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39. good RN-CK4M6V

    Finishes and Interiors Sector

    The trade body uniting the finishes and interiors supply chain, whose stated aim is to raise standards and improve quality, safety and sustainability in the 13 billion pound finishes, fit-out and interiors sector. Membership covers contractors, manufacturers and suppliers, all vetted against strict quality and safety criteria. Its Knowledge Hub holds Technical Resources, Building Safety Act guidance, health and safety resources, sustainability resources, a Digital Construction toolkit, the Acoustic Verification Scheme, Support for Specifiers and a British Standards section. Other main sections are the Member Directory, Project Library, Skills Hub, Membership Hub and SpecFinish. Use it as the trade authority for drylining, partition and suspended ceiling workmanship, and its Acoustic Verification Scheme when a note claims a partition achieves a stated sound reduction.

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40. good RN-51BBUI

    Finishes and Interiors Sector (FIS)

    The technical arm of the trade body for drylining, partitioning, plastering, suspended ceilings and access floors, and the place a note should send a reader for best practice on stud walls and dry lining. FIS runs an advisory service on materials, ancillary equipment, systems and their application and installation across those sub-sectors, reachable on 0121 707 0077, and publishes British Standards lists, fire guidance, technical notes, best practice guides, an office acoustics guide, site guides and research, plus industry alerts on defective practice.

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