Choosing tiles for the coast
Floors. Slip resistance matters more than almost anything else. Wet feet, sand and soap make a smooth floor dangerous. Ask for the slip-resistance classification suitable for wet barefoot areas. Matt, honed or lightly textured porcelain works well; a mid-tone hides sand and water marks better than bright white or deep black.
Shower floors. Smaller tiles or mosaics follow the falls to the waste more easily and give more grip. A large-format tile can work with a linear drain and careful grading.
Walls. Gloss or satin tiles bounce light around a small room and wipe clean. Handmade-look, textured or fluted tiles add depth. Terrazzo-look and stone-look porcelain suit the relaxed coastal palette many Northern Beaches owners want.
Feature areas. A niche, the wall behind the vanity, or a half-height band is where a patterned or coloured tile has the most impact without overwhelming the room.
Grout: the weak point
Cement-based grout is porous. In a humid bathroom with sand underfoot it absorbs moisture, discolours, grows mould and gradually wears away.
- Epoxy grout in showers and on floors — low porosity, stain and mould resistant, harder wearing.
- Sealed cement grout where epoxy is not practical, resealed periodically.
- Grout colour chosen to disguise rather than highlight — mid-greys and sand tones in wet zones.
- Narrow, consistent joints with rectified tiles where the tile allows.
Set-out
A tiled room looks right when it is set out before the first tile goes down:
- Joints centred on the vanity, the niche or the window
- No thin slivers of tile at edges, doorways or the ceiling line
- Niches sized to whole tiles
- Floor and wall joints aligned where the design calls for it
- Waste positions and fall lines planned into the pattern
Trims and junctions
Exposed tile edges on external corners, niches and around windows need a finish. In salty coastal air, the trim material matters:
- Stainless steel trims resist corrosion better than many alternatives near the surf
- Mitred tile edges avoid visible metal altogether
- Flexible sealant at wall-floor junctions, around baths and at changes of plane, rather than rigid grout
Tiling to the ceiling
Painted plasterboard in the shower zone of a humid beach bathroom blisters and grows mould. Tiling shower walls to the ceiling, and ideally the whole room, removes that maintenance and makes the room feel taller.
Laundries and outdoor showers
Laundry floors need the same slip resistance and hard-wearing grout as a bathroom floor, since they take the same sandy feet. Outdoor showers use exterior-rated, slip-resistant tiles and corrosion-resistant fixings. See laundry renovations.
Tiling follows waterproofing
Tiles only go on after the membrane has fully cured. Tile adhesive is chosen to suit the membrane system and substrate. See waterproofing.
Tile allowances on the quote
A quote should state whether tiles are included, and at what allowance per square metre, or whether you supply them. Large-format tiles, intricate patterns, mosaics and herringbone take longer to lay and cost more in labour.
See the 2026 cost bands and bathroom renovations.
Call 02 4705 5289 or send the bathroom details through.
Questions people ask before they commit
What floor tiles are best for a beach house bathroom?
Porcelain tiles with a slip-resistance rating suitable for wet barefoot areas, a lightly textured or matt surface, and a colour that does not show every grain of sand. Very glossy floor tiles look beautiful dry but can be slippery when wet. Tile suppliers can confirm the slip-resistance classification of each product.
Is epoxy grout worth it?
In showers and on floors that see a lot of water and sand, often yes. Epoxy grout is far less porous than cement-based grout, resists staining and mould better, and holds up to scrubbing. It costs more and takes more skill to apply. Quality cement-based grout with a penetrating sealer is a reasonable alternative.
Should bathroom walls be tiled to the ceiling?
It is a practical choice in humid coastal bathrooms. Full-height tiles remove painted plasterboard from the shower zone, where steam causes paint to blister and mould to form. Where budget is limited, tiling the shower walls to the ceiling and other walls to a set height is a common compromise.
What about natural stone tiles?
Natural stone can look wonderful but is porous and needs sealing, and some stones react to cleaning products and hard water. In salty, sandy, heavily used beach bathrooms, stone-look porcelain gives a similar effect with less maintenance.