Bathroom Layout Ideas

Fixtures, clearances and flow — planned on paper before anything is demolished. What each arrangement needs in millimetres, why grouping wet services keeps a job simpler, and which layouts suit rooms roughly 1.8m, 2.4m and 3m wide.

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01 / THE ORDER OF DECISIONS

Layout is decided before finishes, not after

Most bathrooms that feel awkward are not badly finished — they are badly arranged. A door that clips the vanity, a toilet you shuffle sideways to reach, a shower that is technically a shower and practically a cubicle. None of that is fixed by a nicer tile.

Work in this order: measure the room and note where the existing waste and water lines sit, place the wet zone, then the toilet, then the vanity, then check every clearance and door swing. Selections come last. If you want that plan drawn properly with elevations and a fixture schedule, that is the job of bathroom design; if the room is tight, the patterns on small bathroom renovations apply directly.

Four things fix a layout before anything else moves: the door swing, the drainage point, the window, and the wall you share with another room. Solve those and the rest of the plan usually resolves itself.

02 / CLEARANCE LEDGER

The distances that make a room comfortable

Figures below are the working targets we plan to where the room allows. They are comfort dimensions, not the bare minimum a fixture can physically be installed in — planning to the minimum is how a bathroom ends up feeling like a corridor.

Entry zone

CL-01 · Keep the door swing clear of the vanity and towel rail, or hang it to swing out. A cavity slider buys back roughly a door’s width of usable floor in a narrow room.

In front of the vanity

CL-02 · Aim for 750–900mm of clear floor so a drawer can open while someone stands there. Sizing and basin choices are covered in the vanity guide.

Around the toilet

CL-03 · Roughly 800mm of width centred on the pan and 600mm+ in front. Wall-hung pans with in-wall cisterns recover depth but need the wall built out to suit.

Shower footprint

CL-04 · 900 × 900mm works; 1000 × 1200mm feels generous and lets you stand clear of the spray while it warms. See walk-in showers for hobless options.

03 / SERVICES AND FALLS

Group the wet zone, keep the runs short

Shower, bath and basin drainage sitting on or near one wall keeps pipework tight, reduces the amount of floor that has to be cut or built up, and gives the tiler a single clean fall to work to. Spread the same fixtures across three walls and you add rough-in, chasing and more junctions under the floor.

The floor waste has to sit at the low point of the fall, inside the shower or in the graded area — not tucked under a vanity, hard against a wall junction, or somewhere a joist happens to be. On a suspended timber floor the position is constrained by what runs underneath; on slab it depends on where the existing point can be relocated to. Confirm this early, because it dictates the fall and therefore the tile format. Membrane sequence is covered in the waterproofing guide, and the trade work itself in bathroom waterproofing.

04 / THREE ROOM WIDTHS

Sample layout patterns

LP-01 · 1.8m WIDE

Single-wall run

Shower at the far end, toilet centre, vanity nearest the door — all services on one long wall. Diagram brief: a narrow rectangle, entry bottom-left, three fixtures stacked along the top edge, clear walking strip down the middle. Slim vanity, wall-hung pan and a hobless shower with a single fixed panel stop it reading as a corridor.

LP-02 · 2.4m WIDE

Facing pair

Shower and toilet on the wet wall, vanity opposite. Diagram brief: two parallel fixture bands with roughly 900mm of clear floor between them. This is the most common inner-east family bathroom shape and usually the one where a bath can be swapped for a larger shower without moving walls.

LP-03 · 3m WIDE

Wet end

Shower and freestanding bath share the far end behind one screen line, vanity and toilet split the entry end. Diagram brief: room divided across its width, wet third at the back under the window, dry two-thirds forward. Suits full bathroom renovations where the room is being stripped anyway.

05 / WHAT MOVING COSTS

When a change is worth paying for

Not every fixture costs the same to relocate. A basin is the cheapest — water and waste are above floor level and easily re-run. A shower is moderate, since the waste and fall have to follow. A toilet is the expensive one, because the soil pipe has limited fall and its route is dictated by what sits below the floor. Moving a bath depends entirely on access underneath.

A wall move is justified when it fixes a real problem: an entry that forces the vanity into the swing, a separate toilet cubicle stealing a metre from a room that needs it, or a dead corner that no fixture fits. Absorbing a separate toilet usually means removing the dividing wall, resolving the shared floor level, and re-planning the whole room as one wet area — worth doing while everything is out, rarely worth it as a standalone job.

Cosmetic wall moves for symmetry alone are the first thing to cut. Read what drives renovation cost before committing, and use the renovation checklist to lock the plan before demolition.

06 / QUESTIONS

Layout questions we are asked most

Can I keep the same layout and still change the look?

Yes, and it is the most efficient option. Keeping fixtures on their existing points removes most plumbing relocation work, so the budget goes into tiling, cabinetry and tapware instead.

Should I remove the bath?

If it is the only bath in the house, think carefully. If there is another one, the space usually gives a far better shower. In a 2.4m room that swap alone changes how the bathroom is used daily.

Where can a floor waste not go?

Not under a vanity or bath, not at a high point of the fall, and not where a joist or beam blocks the drop. Position is confirmed on site before the screed and membrane stage.

Does an ensuite follow the same rules?

The clearances do, but the space rarely allows all of them. Compact planning trade-offs are covered in ensuite ideas and the ensuite renovations service page.

Send us your room dimensions

Tell us the width, the door position and where the existing waste sits, and we can talk through which of these patterns your room will actually take. The enquiry form asks for your name, email, phone, suburb, renovation type, budget, timeframe and project details.

NEXT IN THE LEDGER

Bathroom Design →
Plans, elevations and a fixture schedule.

Small Bathroom Renovations →
Space-smart layouts for tight rooms.

Bathroom Tile Ideas →
Formats that suit a graded floor.

All Bathroom Guides →