Porcelain vs sandstone patio: an honest comparison

Why porcelain costs more to lay

The slabs themselves cost more, but the bigger difference is the method. Porcelain is dense and almost non-porous, so it will not bond to an ordinary mortar bed the way stone does. Each slab needs a priming slurry on the back and a full, solid bed with no voids underneath, and the cuts take a proper wet saw and more time. That labour is a large part of the gap in the price.

Sandstone is more tolerant. Its natural thickness varies a little from slab to slab, and the bed is adjusted as each one goes down, which suits uneven older gardens.

Indian sandstone patio: what to expect

Sandstone has a riven, slightly textured face and a natural colour range, so no two patios look quite the same. It is porous, which means it takes on the character of the garden over time. In a shaded or damp corner that can mean green staining and algae, which needs an occasional clean.

A sealer can reduce staining, though many people prefer to let the stone weather. Either way it suits cottage gardens, period houses and anyone who wants a patio that looks settled rather than brand new.

Porcelain paving pros and cons

In its favour, porcelain resists stains, does not fade and cleans with a brush and water. Good outdoor porcelain is made with a textured surface for grip, and its consistent size gives very straight, tight joints that suit modern houses.

Against it, the upfront cost is higher, chips at the edges are harder to hide than on stone, and a poor bed shows quickly because a hollow slab can crack under a point load. It is the material where the quality of the laying matters most.

Best patio slabs for UK gardens

There is no single best slab, only the best fit for the garden in front of you. As a rough rule:

• North facing or under trees: porcelain, because it shrugs off algae
• Tight budget or a large area: sandstone or concrete slabs
• Uneven old ground and period houses: sandstone
• Clean modern lines and minimal upkeep: porcelain

The part both have in common

Whichever slab you choose, the result is decided underneath. Both need a dug and compacted sub-base, a consistent fall so rain runs away from the house, and joints filled properly. A cheap base under expensive porcelain is still a cheap patio.