Engineered house slabs — AS 2870, soil-classified, signed off.

What's included

The full slab package — site set-out and levels, excavation and bulk earthworks, screen plumbing prep (so the plumber's rough-in lands clean), termite barrier prep, formwork, reinforcement, concrete supply and placement, finish, control joint cutting and final certification handover.

Slab types

• Waffle pod slab. The Sydney suburban default. Polystyrene waffle pods on a 1.1m grid, with concrete ribs over and a top slab. Suits Class M / S / H sites.
• Conventional raft slab. In-situ formed and poured beam-and-slab. Heavier sites, complex footings, or where the engineer has called it.
• Strip footings + slab on ground. Where the engineer specifies separate strip footings under load-bearing walls and a SL-mesh slab between.
• Stiffened raft. For reactive Class P sites — deep edge beams, heavier reinforcement, larger slab thickness.

Soil classification

Every house slab is designed to a soil classification (Class A through P per AS 2870). You'll need a soil report from a geotech engineer before the slab is engineered — if you don't have one, we can refer you. Don't skip this step: the wrong classification leads to the wrong slab, which leads to cracking and expensive rectification.

Standards we work to

• AS 2870 — Residential slabs and footings
• AS 3600 — Concrete
• NCC Volume 2 — Class 1a residential
• AS 3660 — Termite management

From our sites

Common questions