Bathrooms
177 sources in the library on bathrooms, 40 on this page cited in a published note. 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 2 of 5.
- strong RN-ZXKJUB cited
BSI Knowledge
BSI's record for BS EN ISO 10545-6, the deep abrasion test used for unglazed tiles; it supports the standard's existence and scope.
Cited in Bathroom Tiles: Types, Cost & Layout.
- strong RN-APOT4P cited
BSI Knowledge
BSI's record for BS EN ISO 10545-7, the surface abrasion test that applies to glazed tiles only; it supports the standard's existence and scope.
Cited in Bathroom Tiles: Types, Cost & Layout.
- strong RN-5XVQAQ cited
Electrical Safety First
States that sockets are not allowed in a bathroom or shower room, apart from shaver supply units, unless they can be fitted at least 2.5 m from the edge of a bath or shower tray. Shaver points are permitted within that 2.5 m provided they are SELV or conform to BS EN IEC 61558-2-5. Recommends a ceiling-mounted pull-cord switch in preference to a wall light switch because of dampness and wet hands. Confirms all circuits in or passing through bathrooms or shower rooms must be protected by an RCD. General guidance keeps outlets at least 30 cm from water or heat sources.
Cited in Heated Mirrors & Bathroom Extras.
- strong RN-8VV8NH cited
NICEIC
NICEIC's householder guide to BS 7671 bathroom rules. It defines zones 0, 1 and 2 and covers sockets, shaver sockets, switches and RCD protection.
Cited in Bathroom Layouts & Planning, Bathroom Ventilation & Extractor Requirements, Baths Compared: Freestanding, Inset & Shower Baths, Extractor Fans: Types, Bathroom Regs & Sizing and 6 more.
- strong RN-GTCR9U cited
Water Regulations Approval Scheme
Sets out that WRAS checks testing of water fittings for compliance with the Water Supply (Water Fittings) Regulations and the Scottish Byelaws, which impose a legal duty on everyone to use suitable water fittings when connected to a public water supply, covering pipes, fittings, taps, showers, washing machines, dishwashers, coffee machines, boilers and toilets. States plainly that a WRAS approval itself is not mandatory but the testing is, so the point of the approval is proof that the required material and mechanical tests were passed, including that a product will not affect the taste or smell of drinking water or promote microorganism growth. Every approved fitting carries requirement and installation notes stating conditions of use, for example cold water only. Non-compliant fittings may have to be replaced and can lead to prosecution and a fine; cites British insurers' data that a burst pipe repair claim in freezing weather costs on average 8,800 pounds.
Cited in Basins & Vanity Units: A Buyer's Guide, Boiling Water Taps & Filtered Taps.
- strong RN-MVR3NJ cited
WaterRegsUK (Water Regulations Advisory Scheme)
The depths and protections that decide whether a new supply or a bathroom pipe run is compliant. Below ground, a water supply pipe must be laid not less than 750 mm deep and no greater than 1350 mm deep, to limit both freezing and mechanical damage; where a shallower run is unavoidable it needs the local water undertaker's consent and must be as deep as possible with added protection against warming, freezing and mechanical damage. Pipes and fittings must be suitable for below ground use, joints kept to a minimum, and the pipe embedded in non-abrasive material. Non-metallic fittings must not be in contact with soil contaminated by diesel, heating fuel, pesticides or similar substances. Insulation, installed to manufacturer instructions and to BS 5422 or BS EN ISO 12241, may delay but will not prevent freezing, so depth and routing do the real work. Above ground, pipework must remain accessible for maintenance and replacement, and concealed joints should be used only where unavoidable because they lose integrity over time. The page names Schedule 2 paragraph 7 for pipework and paragraphs 8, 9, 11, 12, 13 and 14 for system design and installation.
Cited in Outdoor Shower Cost: 2026 UK Price Guide.
- strong RN-JDN21B cited
WRAS Approvals Ltd
The certification scheme whose approval mark on a tap, shower, pump or cylinder demonstrates compliance with the water fittings regulations. WRAS describes itself as an independent UK certification body for plumbing products and materials accredited to ISO 17065, with more than 8,000 approved products in its directory. Approvals are searchable by seven digit WRAS approval number, company or keyword, and the public directory covers products and materials approved in the last five years, so an expired or absent listing is itself a finding. The scheme runs both product approvals and material approvals and operates a laboratory recognition programme for the accredited test houses.
Cited in Choosing Bathroom Taps & Brassware.
- good RN-9N82AN cited
Federation of Master Builders
The FMB's element-by-element bathroom cost guide. It gives tiling labour at about £40 per m² and typical ceramic bathroom tiles at £25 per m², which sets the floor of the wet room tiling rates.
Cited in Cost of a New Bathroom (Full Breakdown), Wet Room Tanking & Waterproofing.
- good RN-YL820L cited
The Tile Association (TTA)
The tiling trade's own list of the standards a specification should name, and the fastest way to check whether a quotation cites the right one. Design and installation: BS 5385-1 internal wall tiling in normal conditions, BS 5385-2 external wall tiling, BS 5385-3 internal and external ceramic and mosaic, natural stone and terrazzo flooring and internal agglomerated stone flooring, BS 5385-4 tiling in special conditions. Waterproofing and grout: BS EN 14891 liquid-applied water impermeable products for use beneath ceramic tiling bonded with adhesives, which is the wet room tanking standard, and BS EN 13888 grout for tiles. Slip resistance: BS 7932 determination of the unpolished and polished pendulum test value of surfacing units. Base preparation: BS 8000-9 cementitious levelling screeds and wearing screeds, BS 8000-8 plasterboard partitions and dry linings, BS 8000-16 sealing joints using sealants. Tile specification: BS EN 14411 ceramic tiles definitions and classification, and the BS EN ISO 10545 series parts 1 to 16 of test methods. Natural stone and terrazzo: BS EN 12057 modular tiles, BS EN 13748-1 and -2 terrazzo tiles for internal and external use, BS EN 14157 determination of abrasion resistance. Accessibility: BS 8300.
- good RN-HMZ96Q cited
Water Regs UK
Water Regs UK's own description of itself: a body supporting the water undertakers that enforce the water fittings regulations, which publishes regulations guidance.
- good RN-RDU4IB cited
Water Regs UK
Water Regs UK guidance on backflow protection for bath and basin taps. It explains the tap gap to the spill-over level and the double check valve alternative in homes.
Cited in Baths Compared: Freestanding, Inset & Shower Baths.
- fair RN-O10H4Q cited
Electrical Safety First
Electrical Safety First's consumer advice on bathroom electrics. It states the 2.5 m socket rule, the shaver unit exception and that all bathroom circuits need RCD protection.
Cited in Bathroom Layouts & Planning.
- fair RN-DSU2IS cited
Northern Ireland Water
A water company's explanation of the water industry Fine to Flush standard, saying many wipes labelled flushable do not break down and would not pass its tests.
Cited in How to Unblock Toilet.
- fair RN-92K7GB cited
WaterSafe
WaterSafe's own home page, describing its register of approved plumbers drawn from water industry and trade approved-plumber schemes.
Cited in How to Unblock Toilet.
- supplier figure RN-D08GNG cited
Agrob Buchtal
A tile maker's technical sheet reproducing the EN 14411 classification table: group III is water absorption above 10%, and group BIII essentially applies to glazed tiles.
Cited in Bathroom Tiles: Types, Cost & Layout.
- supplier figure RN-MUJETX cited
B&Q
A retailer product page for a common UK toilet auger, giving its cable length of 900 mm, which supports the typical reach stated.
Cited in How to Unblock Toilet.
- supplier figure RN-579JNB cited
B&Q
B&Q marketplace product page for the Geberit Type 290 dual flush valve (282.350.21.2); it gives the retail price, within the note's £20–£60 range for a Geberit flush valve.
Cited in How to Fix Toilet Flush Button.
- supplier figure RN-JX4HEW cited
Bristan
Bristan's customer FAQs: its taps and showers have minimum water pressure requirements that differ by product, and buyers should check their system pressure against the stated operating pressures before purchase.
Cited in Choosing Bathroom Taps & Brassware.
- supplier figure RN-YQQAEK cited
Geberit
Maker's UK catalogue page for a shower toilet, giving its flow rate, spray time and minimum flow pressure, from which water use per wash is worked out.
Cited in Smart Toilet Cost: 2026 UK Price Guide.
- supplier figure RN-1DI9KL cited
Geberit
Geberit's Duofix frame brochure lists WC frames for solid walls and a slimline frame described as ideal for stud wall installation, with stud-wall brackets and system rails as accessories.
Cited in Toilets Explained: Close-Coupled, Wall-Hung & Rimless.
- supplier figure RN-H785KA cited
Geberit
Geberit's UK guidance says its wall-hung toilets and pre-wall installation frames are tested for stability and, when installed correctly, support up to 400 kg.
Cited in Toilets Explained: Close-Coupled, Wall-Hung & Rimless.
- supplier figure RN-ZYYU39 cited
Geberit UK
Geberit UK page on its concealed cisterns; it settles that flush plates are matched to the cistern series named on them, so the cistern must be identified before ordering.
Cited in How to Fix Toilet Flush Button.
- supplier figure RN-4R9ZY4 cited
GROHE
GROHE's UK product page for its low-pressure Start mono basin mixer: marketed for systems under 0.2 bar, it lists a minimum recommended pressure of 0.3 bar, showing low-pressure minimums vary by model.
Cited in Choosing Bathroom Taps & Brassware.
- supplier figure RN-5XUB80 cited
Heat Mat
A UK distributor's page for demista mirror heaters: a 500 x 500 mm pad draws 50 W, about 200 W per square metre, which puts a 300 x 400 mm pad near 24 W and a 600 x 800 mm pad near 96 W.
Cited in Heated Mirrors & Bathroom Extras.
- supplier figure RN-EEOFWV cited
Mira Showers
A shower maker's power shower range page. Its FAQ says power showers cannot be used with a combi boiler because WRAS guidance does not allow mains water to be pumped.
- supplier figure RN-20K7PC cited
Mira Showers
Mira Showers' help page on gravity-fed systems: the pressure available depends on the height of the cold-water cistern's base above the outlet, with about 1 metre the usual minimum for showers.
Cited in Choosing Bathroom Taps & Brassware.
- supplier figure RN-02X020 cited
Old Fashioned Bathrooms
A bathroom retailer's product page for the Hurlingham Dryden 1,700 x 750 mm cast iron bath. Its specification gives an empty weight of 217.5 kg and a maximum capacity of 210 litres, which with water alone passes 400 kg.
Cited in Baths Compared: Freestanding, Inset & Shower Baths.
- supplier figure RN-SW51G4 cited
Schlüter-Systems
The maker's product page for the DITRA membrane; it states that the membrane, bonded under tiles, both waterproofs and uncouples the tiling from problem substrates.
Cited in Shower Rooms vs Wet Rooms.
- supplier figure RN-B3Z3CL cited
Screwfix
the retail price Screwfix publishes for essentials economy pipe insulation 15mm x 13mm x 1m, which is the supply figure the cost book records for this item
Cited in How to Box In Pipes & Boilers.
- supplier figure RN-SXIKOR cited
Screwfix
Screwfix product page for a Grohe Bau rimless wall-hung WC pan supplied with a soft-close seat, concealed cistern sold separately, giving its price including VAT.
Cited in Toilets Explained: Close-Coupled, Wall-Hung & Rimless.
- supplier figure RN-MW1XMF cited
Screwfix
the retail price Screwfix publishes for Mira Flight Low Corner Waste Square Shower Tray White 800mm x 800mm x 40mm, which is the supply figure the cost book records for this item
Cited in Shower Enclosures & Trays: Sizes & Cost.
- supplier figure RN-GOVTUD cited
Screwfix
Screwfix product page for a wall-hung WC support frame with an integral 6/3 litre dual-flush concealed cistern, giving its price including VAT.
Cited in Toilets Explained: Close-Coupled, Wall-Hung & Rimless.
- supplier figure RN-V2U6NG cited
Selco Builders Warehouse
A builders' merchant product page for a full sheet of 12.5 mm moisture-resistant plasterboard. It gives the current price including and excluding VAT.
Cited in How to Hide Pipes Behind Toilet, Plasterboard Types & Sizes Explained.
- supplier figure RN-5OKG27 cited
Selco Builders Warehouse
the retail price Selco Builders Warehouse publishes for Ultraplan Renovation Screed 25kg, which is the supply figure the cost book records for this item
Cited in Floor Levelling & Subfloor Prep.
- supplier figure RN-VYPFOI cited
SFA Saniflo
Saniflo's own FAQ for UK customers; it recommends its descaler every three to six months in hard-water areas.
Cited in Install A Macerating Toilet Cost: 2026 UK Price Guide.
- supplier figure RN-DNBJ01 cited
SFA Saniflo
Saniflo product page for the Saniplus Up macerator; it states the unit discharges through 22, 28 or 32 mm small-bore pipework.
Cited in Install A Macerating Toilet Cost: 2026 UK Price Guide.
- supplier figure RN-D2TN4M cited
Sika (Everbuild)
Maker's data sheet for a widely sold sanitary silicone; it describes the built-in mould protection that anti-mould sanitary silicones carry, and gives skin time and cure rate.
Cited in How to Seal Shower Screen.
- supplier figure RN-4DCY1C cited
Soudal
A sealant maker's step-by-step guide to resealing a bath. It says to fill the bath before sealing so it settles, to prevent cracking, and to leave it full until the sealant has cured.
Cited in Reseal Bath Cost: 2026 UK Price Guide.
- supplier figure RN-RO0I6U cited
Soudal
The maker's page for its acetoxy (acid-cure) and neutral-cure sanitary silicones. It warns that the acetoxy version must not be used on copper or natural stone, which is why a neutral cure is specified there.
Cited in Reseal Bath Cost: 2026 UK Price Guide.
- supplier figure RN-G33BZE cited
Soudal UK
Maker's technical data sheet for a sanitary silicone; it states the product is moisture curing and that skin and cure times vary with temperature and moisture.
Cited in How to Seal Shower Screen.