Somewhere between brick paving and poured concrete sits the paving slab: big, flat, quick to transform a space, and responsible for some of the best and worst outdoor areas in Cape Town. The difference between the two outcomes is usually size selection and what happened underneath.
This guide covers the slab formats you’ll find locally, 2026 prices, and where each size genuinely belongs.
The common slab sizes and where they work
450x450mm
The old faithful garden slab. Light enough for one person to lay, cheap, everywhere. Best for garden paths and stepping-stone runs; too small and busy-looking for large patios, and not for driveways.
600x600mm
The modern default. Large enough to look contemporary, small enough to handle without machinery. This is the size behind most of the sleek patios on Instagram. Prices at the big sheds run R65–R120 per slab depending on finish — roughly R180–R330 per m² in material.
Large format (600×900, 800×800, 1000×1000)
Striking, and priced accordingly — both the slab and the labour, because big slabs are heavy and unforgiving to bed perfectly. A stunning choice for minimalist designs with grass or pebble joints.
Flagstones and irregular slabs
Random-shape flagstones suit farm-style and coastal gardens. The organic look hides small settlement well, which makes them forgiving in sandy soil.
Finishes and what they cost
Smooth power-floated slabs are cheapest but slippery when wet — think twice near pools. Exposed aggregate and textured finishes add grip and R30–R60 per m². Simulated stone (cast concrete mimicking sandstone or slate) runs R250–R400 per m² and has become genuinely convincing. True natural stone is its own price bracket — see our materials guide for that comparison.
Slabs vs brick paving: when each wins
Slabs win on modern looks, speed over large flat areas, and cost for patios. Brick paving wins on driveways (small units handle point loads and turning wheels far better), slopes, and anywhere with lots of cuts and curves. Most premium gardens we build use both — slab patio, brick pathways, and the contrast does the design work. More on that split in brick vs concrete pavers.
Can you drive on paving slabs?
Standard 40–50mm garden slabs: no — they crack under wheels, full stop. Driveway-rated slabs exist (75mm+, reinforced, laid on mortar over concrete) but at that spec you’re paying more than quality brick paving for a weaker result. If it’s a driveway, read our driveway paving page instead.
Getting slabs laid properly
Patios need 75–100mm compacted base, a full mortar bed or screeded sand bed depending on slab, consistent 5–10mm joints, and falls away from the house — standing water against a wall in a Cape winter finds its way inside. Large formats need suction lifters and two sets of hands. It’s less forgiving than brick: one proud corner and you see the shadow across the whole patio at sunset.
Quick answers
What do 600×600 paving slabs cost in Cape Town?
R65–R120 per slab at retail in 2026 (R180–R330 per m²), plus roughly the same again for proper installation.
What goes under paving slabs — sand or mortar?
Either can be right: screeded sand for standard slabs on well-drained ground, a mortar bed for large formats, wet areas and anywhere movement would show. What’s never right is slabs on bare ground.
Are paving slabs cheaper than brick paving?
For patios, usually yes — fewer units, faster laying. For driveways the equation flips because driveable slabs are expensive.
Planning a patio or pathway? Our patio paving and walkway paving teams work with every format above — get a free quote and we’ll recommend a size and finish that suits your space, not just the fashionable one.