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Bathrooms guide

Bathroom Suites Buying Guide: Layouts, Sizes and What to Order

Compare complete, cloakroom and designer bathroom suites, plan the layout properly, and order everything the fit needs first time.

Plumb Supply TeamPublished 3 min read
Modern bathroom with close coupled toilet, basin and shower bath

A bathroom suite is the sanitaryware package — usually toilet, basin and bath or shower — bought together so styling and dimensions match. The choice depends on the room size, the layout you can achieve within the pipework, and how much of the fit you want in one box. This guide covers suite types, clearances, and the full list of parts a suite install actually needs.

Suite types compared

Suite typeUsually includesRoom sizeBest for
Complete suiteToilet, cistern, basin, bath or showerMedium to largeFull bathroom refits in one order
Cloakroom suiteCompact toilet and small basinUnder 2m²Downstairs WCs and en-suites
Designer suiteWall-hung or back-to-wall pieces, often with furnitureMedium to largeHigher-specification refits with concealed pipework

Buying a suite rather than separate pieces keeps the ceramic colour and styling consistent and reduces the number of deliveries to coordinate. Where you need a specific bath size or a particular toilet projection, mixing individual pieces from the same range is usually the better route.

Layout, sizes and clearances

Measure the room and mark existing soil, waste and water positions before choosing pieces. Moving a toilet is the most expensive change in any bathroom because of the soil connection and the fall required on the waste run.

ItemTypical sizeClearance to allow
Standard bath1700 × 700mm700mm access along one long side
Shower bath1700 × 750–850mmSpace for screen to swing or slide
Close coupled toilet600–700mm projection600mm clear in front
Basin450–600mm wide200mm each side where possible
Quadrant enclosure800–900mmDoor swing clear of the toilet
Check the manufacturer's technical drawing for the exact model before committing to a layout.
  • Wall-hung pieces need a supporting frame and solid fixings — allow for the frame depth in the room dimensions
  • Back-to-wall toilets need a boxed or furniture unit behind them; confirm the cistern fits the depth
  • Shower trays need a level, fully supported base — check whether the floor needs building up

Choosing the showering arrangement

The shower choice depends on the heating system. Mixer showers suit systems with balanced hot and cold pressure; electric showers work independently of the hot water supply and suit properties where stored hot water is limited; digital showers need a compatible pump or supply.

The full order checklist

Suites rarely include everything the fit needs. Missing items are the usual reason a bathroom job stalls halfway through, so price the following alongside the suite itself:

  • Taps and bath filler, plus wastes and traps for bath and basin
  • Toilet pan connector, flexible or offset as the soil position requires
  • Isolating valves and flexible tap connectors
  • Bath panel, feet and cradle if not supplied
  • Shower valve, riser or head, plus enclosure seals
  • Tiles, adhesive, grout and silicone
  • Towel rail or radiator, and extractor fan where required

Buying a bathroom for a job

For a full refit, build the specification as a saved list so the whole bathroom — suite, brassware, enclosure, tiling and consumables — can be ordered together and reordered on the next property. Larger or multi-bathroom schedules can go through the quote desk for project pricing and phased delivery.

Frequently asked questions

What is included in a bathroom suite?
Most complete suites include a toilet with cistern and seat, a basin with pedestal or brackets, and a bath. Taps, wastes, traps, panels and shower fittings are frequently sold separately — check the specification before ordering.
What size bathroom suite fits a small room?
Cloakroom suites with a compact toilet and small basin work in spaces under about 2m². In small full bathrooms, a 1700mm shower bath with a screen usually makes better use of the space than a separate bath and enclosure.
Can I move the toilet when refitting a bathroom?
It is possible but it is the most costly change, because the soil connection and waste fall have to be reworked. Keeping the toilet in place and moving the basin or bath instead is usually far cheaper.
Should I buy a suite or separate pieces?
Buy a suite where you want matching styling and a single order. Choose separate pieces from the same range when you need a specific bath length, toilet projection or basin width that the packaged suite does not offer.

Plumb Supply Team

Practical buying information from the Plumb Supply team.

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