If you are planning a bathroom and wondering whether the walls or the floor get tiled first, the short answer is walls first for most jobs. Adelaide tilers usually start on the walls, sit the bottom row on a temporary support batten, then tile the floor last so it stays clean and the junction where wall meets floor looks neat.
That is the rule of thumb, but the order genuinely affects the finish, and there are cases where floor-first is the smarter call. This guide walks through both methods, the batten trick the pros rely on, and what the sequence tells you about a tiler. It sits within our complete guide to bathroom tiling in Adelaide.
The short answer: walls first, floor last
For a standard Adelaide bathroom, the sequence a good tiler follows is:
- Waterproof the wet area and let it cure properly.
- Fix a level support batten to the walls, one tile height up from the floor.
- Tile the walls, starting from the batten and working up.
- Once the wall adhesive has set, remove the batten.
- Tile the floor, cutting the perimeter tiles to sit neatly under the wall tiles.
- Grout, silicone the internal corners, and clean off.
Doing it in this order keeps the freshly laid floor from getting scratched, chipped or covered in adhesive splatter while the walls go up. It also means the bottom row of wall tiles is set to a true, level line rather than an uneven concrete floor.
Why pros tile walls first
There are 4 practical reasons the walls-first method is the default in most Adelaide bathrooms.
The floor stays protected. Tiling a wall is messy work. Adhesive drips, offcuts drop and knees shuffle around. If the floor is already tiled and grouted, every one of those is a risk to a finished surface. Leaving the floor until last means the most vulnerable, most walked-on part of the room is the freshest.
The wall tiles start dead level. Bathroom floors are rarely perfectly flat, and they often fall towards the drain on purpose. If you started wall tiles off the floor, they would follow that slope. Starting off a level batten instead means the whole wall is square and level regardless of what the floor is doing.
The junction looks right. With walls first and floor last, the floor tiles tuck under the bottom row of wall tiles. That hides the cut edge of the floor tile and gives a clean shadow line at the base of the wall. Done the other way without care, you can end up staring at the rough cut edge of a wall tile sitting on the floor.
Waterproofing stays intact. The floor and the base of the walls carry the most waterproofing detail. Tiling the floor last, after the walls are done, means less traffic and less tool movement over the most critical waterproofed zone during the messy stage.
The support-batten method, explained
The support batten is the piece of the puzzle most homeowners have never heard of, and it is the single trick that separates a tidy wall from a sloping one.
Here is how it works. The tiler finds the lowest point of the floor, measures up one tile height (plus a grout gap), and marks a level line right around the room. A straight length of timber or a metal tiling batten is then screwed to the wall along that line. The first full row of wall tiles rests on top of this batten while the adhesive grabs, so nothing slides down.
Once the walls are tiled and set, the batten comes off. That leaves a gap along the bottom of the walls, which the floor tiles and their cut edges fill later. The result is a bottom row that is perfectly level all the way round, even though the floor underneath it might slope towards the drain.
Skip the batten and try to tile off the floor directly, and gravity plus an uneven slab will fight you the whole way. It is one of the most common causes of the wonky, stepped wall tiles you sometimes spot in a rushed job.
When floor-first actually makes sense
Walls-first is the default, not a law. A skilled tiler will switch to floor-first when the job calls for it.
- Tiles running under a vanity or bath. If the floor tile needs to continue underneath a freestanding bath or a floating vanity, the floor often goes down first so there is no awkward cut hidden behind the fixture.
- A waterfall or continuous look. Some designs deliberately sit the wall tiles on top of the floor tiles for a specific edge detail. That needs the floor laid first.
- Large-format floors with a screed. On a big floor that needs levelling, laying and curing the floor first can make the rest of the set-out easier.
The catch with floor-first is protection. The finished floor has to be covered and looked after through all the messy wall work, which takes discipline. In the wrong hands it leads to a chipped, adhesive-stained floor. In the right hands it is a perfectly valid approach.
How the order affects the finish
The sequence is not just workflow housekeeping. It shows up in the final result.
| Detail | Walls first (batten) | Floor first | | --- | --- | --- | | Wall level accuracy | Excellent, set off a true line | Depends on floor flatness | | Wall-to-floor junction | Clean, floor tucks under wall | Needs careful edge detailing | | Floor protection | Floor laid last, stays pristine | Floor must be covered and guarded | | Best suited to | Most standard bathrooms | Fixtures on tile, waterfall edges |
For the vast majority of Adelaide bathrooms, walls-first gives the crispest lines with the least risk. The order also feeds into the overall bathroom renovation tiling timeline, because each stage needs curing time before the next begins, and that sequence cannot be safely rushed.
Before any tiling starts
None of this matters if the groundwork is wrong. Whatever the order, the wet area has to be waterproofed to Australian Standards and fully cured before the first tile goes on. If that step is skipped or rushed, the finish is living on borrowed time no matter how neat the tiling looks. Our guide on whether you have to waterproof before tiling a bathroom covers why this is non-negotiable.
Your tile choice also shapes the set-out. Big tiles in a small room change how the batten line and the floor cuts are planned, which is worth thinking through early if you are working with limited space. If that sounds like your project, the best tiles for a small bathroom is a good place to start.
Let a vetted Adelaide tiler set it out
The tiling order is one of those details that quietly reveals whether a tiler works carefully or cuts corners. Someone who talks you through their sequence, their support batten, their waterproofing and their set-out is usually the safer choice, even if they are not the cheapest quote.
Rather than guess who that is, tell us about your bathroom and we will connect you with vetted, licensed Adelaide bathroom tilers who will measure up and explain exactly how they plan to approach the job. Comparing a few quotes side by side is the easiest way to see who has really thought it through. Get free quotes from trusted local tilers and start with confidence.