A stiffened raft slab cast at ground level over void pods — engineered to AS2870 and poured by one team, start to finish. Built to your engineer's design for reactive clay and challenging Sydney sites.
A waffle pod slab is a stiffened raft slab cast at ground level over polystyrene void formers — called pods — that sit directly on the ground. When concrete is poured around and over the pods, it forms a grid of deepened beams between them. That beam grid is what stiffens the slab and gives it its waffle-like profile on the underside.
The system is well suited to reactive clay sites — common across Western Sydney and Greater Sydney — where seasonal ground movement needs to be managed by a properly engineered slab. Everything is built to the structural engineer's design and to AS2870, the Australian standard for residential slabs and footings.
With concrete construction experience across Greater Sydney since 2012, we build waffle pod slabs to the drawings your engineer provides — pod layout, beam schedule, steel reinforcement, and concrete specification — managed by one team from set-out to handover.
Six reasons engineers and builders specify waffle pod slabs for Sydney sites.
The stiffened beam grid manages seasonal ground movement in M, H1, H2 and E class soils common across Western Sydney and Greater Sydney.
Pods sit at ground level — no deep beam trenches needed on flat or gently sloping sites, which means less earthworks and less spoil to remove.
The polystyrene pods act as a thermal barrier between the ground and the slab, improving floor insulation compared to a standard ground-bearing slab.
Every waffle pod slab we build is designed by a structural engineer and constructed to AS2870 — the Australian standard for residential slabs and footings.
The waffle pod system performs well on level and mildly graded blocks. Steeper sites or those with significant fall may require a raft or suspended slab — the engineer will specify.
One team manages the whole job — set-out, earthworks, pods, formwork, steel fixing, pour and cure. One point of contact, accountable start to finish.
Three clear stages, one team accountable for every step.
We work from your structural engineer's plans — confirming the pod layout, beam schedule, reinforcement specification and slab levels. The site is set out, levelled, and prepared for the pod placement. If you don't yet have engineering documentation, we can advise on what's needed before we quote.
The polystyrene void formers are placed to the engineered layout on the prepared sub-base. Perimeter and internal formwork is set, then the reinforcing steel is fixed to the engineer's schedule — bar sizes, spacings and laps all to spec. The whole set-up is checked against the drawings before the pour is booked.
Concrete is placed and worked to fill the beam grid and slab — achieving the specified cover over the reinforcement and the correct surface level. The slab is finished and cured to the required standard. We walk you through handover once the cure period is complete.
Looking at all slab types for a new home — waffle pod, raft, suspended or other? Our house slabs page covers what each system suits and how we approach the whole build.
Explore house slabsThe raft slab is the other common AS2870 stiffened slab for Sydney sites. Beams are formed by trenching into the ground rather than with pods. See how it compares to the waffle pod system.
Compare waffle pod vs raftYour structural engineer and geotechnical report determine which slab system is specified for your site. We build to the engineer's documentation — whichever system is required.
Every waffle pod slab is different — the engineer's specification, site conditions and the amount of earthworks required all affect the final number. Send us your site details and engineering plans, and we'll have a fixed-price quote back to you within 24 hours. No deposit to quote, no obligation.
Fixed-price quote on your slab — within 24 hours of receiving your details and engineering plans.