If you are choosing an outdoor surface in Adelaide, the short answer is this: poured or stencil concrete wins on upfront cost, while 20mm porcelain pavers win on looks, low maintenance and how well they age. Which one is right depends on your budget, your patience for upkeep and how much the finished look matters to you.
This guide compares the two honestly across look, maintenance, cost and longevity, with Adelaide conditions in mind. It sits within our Outdoor, Pool and Splashback Tiling in Adelaide pillar guide.
The two options, quickly
Concrete comes in a few forms outdoors. Plain poured concrete is a flat grey slab. Stencil concrete has a pattern and colour printed into the wet surface to mimic pavers or tiles, then sealed. Exposed aggregate shows the stone through the surface. All of it is one continuous, poured element.
Porcelain pavers are a different thing entirely. The 20mm outdoor version is a thick, dense tile fired at high temperature, laid either on a mortar bed, bonded to a slab, or dropped onto pedestals. They come in stone, timber and concrete looks that hold up in full Adelaide sun.
Look and finish
This is where porcelain pulls ahead for most people.
Stencil concrete looks good on day one but reads as a printed pattern up close, and the colour is on the surface, so it fades and wears at the edges over the years. Plain concrete is honest but plain. Exposed aggregate is more characterful but coarse underfoot.
Porcelain gives you a genuine tile finish. You can get a convincing travertine or bluestone look without the price and porosity of real stone, a timber-plank look that never needs oiling, or a clean concrete-look tile with none of the cracking. Because the colour and pattern run through a printed layer under a hard glaze, it does not fade in the sun, which matters a lot on a west-facing Adelaide alfresco or pool surround. If the look of the finished space is a priority, this is a real point of difference. Our guide to alfresco and patio tiling ideas shows how far the finishes have come.
Maintenance over the years
Adelaide summers are long, hot and dry, then we get sharp downpours. That cycle is hard on outdoor surfaces.
- Concrete needs resealing every 2 to 4 years to keep stencil colour and stain resistance, more often in high-traffic or poolside areas. It stains from leaves, red wine, sunscreen and oil, and once it crazes or cracks there is no clean fix, only patching that never quite matches.
- Porcelain pavers are effectively non-porous. They do not need sealing, they shrug off stains, and they clean with water and a stiff broom. Around a pool, chlorine and salt do not affect them. If one paver chips from a dropped pot, a tiler can lift and replace that single piece.
Over a 15 to 20 year window, porcelain is the lower-maintenance surface by a clear margin. If you want a fuller breakdown of which tiles cope best with our conditions, see the best outdoor tiles for Adelaide's climate.
Cost compared
Here is the honest picture. Concrete is cheaper to install, porcelain costs more upfront but claws some of that back over its life.
| Surface | Indicative Adelaide cost (supply and lay) | Resealing | Typical lifespan | | --- | --- | --- | --- | | Plain poured concrete | $65 to $90/m2 | Every 2 to 4 years | 20 to 30 years (with wear) | | Stencil concrete | $75 to $120/m2 | Every 2 to 3 years | 15 to 25 years (colour fades) | | Exposed aggregate | $90 to $130/m2 | Every 2 to 4 years | 20 to 30 years | | 20mm porcelain pavers | $70 to $130/m2 | None | 25 years plus |
A few things to keep in mind reading that table. If porcelain is going onto a new bed or a slab that needs prep, add for that groundwork. If you are laying over a sound existing slab, the cost can sit at the lower end. And the resealing column is the hidden one: a concrete area resealed 6 or 7 times over its life adds up, both in dollars and in the weekends it eats. For a full outdoor breakdown, see our outdoor tiling cost guide for Adelaide.
Longevity and how they age
Both surfaces can last decades when laid properly. The difference is how they look at year 15.
Concrete is a single slab, so it moves as one. In Adelaide's reactive clay soils, that movement often shows up as cracking, and control joints only manage where the cracks land, not whether they happen. Stencil colour fades and the sealer wears thin in traffic paths. It is functional at 15 years but rarely pretty.
Porcelain is laid in individual pieces over a bed or slab, so ground movement is absorbed across many joints rather than concentrated into one crack. The tile face itself does not fade, stain or wear through. And the big practical advantage is repairability: a damaged paver, or one lifted to access a pipe, can be swapped without touching the rest. Concrete cannot be spot-repaired invisibly.
The one caveat is that porcelain lives or dies on the install. Poor falls that let water pool, the wrong adhesive, or laying over a slab that should have been fixed first will cause problems no matter how good the tile is. This is skilled outdoor work, which is exactly why it pays to use a tiler who does it regularly rather than the cheapest quote.
So which should you choose?
- Choose concrete if upfront cost is the deciding factor, the area is large and utilitarian, or you want the job done fast in a single pour.
- Choose 20mm porcelain pavers if you want the best finish, the lowest maintenance, no fading around a sunny pool or alfresco, and a surface that still looks sharp in 15 years.
For most Adelaide homeowners doing an alfresco, patio or pool surround they will actually live in, porcelain is worth the extra upfront. For a big utility slab like a shed apron or driveway, concrete makes more sense. Many jobs use both.
Whichever way you lean, the install is what makes or breaks it. You can read more about how this work is done properly on our outdoor and pool tiling service page.
Get quotes for your outdoor area
The best way to compare fairly is to get both options priced on your actual space. Tell us about your project and we will connect you with vetted, licensed Adelaide tilers who will measure up and quote your porcelain or concrete outdoor area properly, free and with no obligation.