House Slabs Gold Coast

The largest single factor is the site classification from your soil test, because a more reactive site needs deeper beams, more steel and more concrete. Slab area and footprint complexity, the system your engineer specifies, how much cut and fill the lot needs and site access then follow. We price exactly what the engineer has designed and give you a written quote you can compare fairly.

A raft slab has beams trenched into the ground so the slab sits partly within the soil, while a waffle slab sits on the surface on a grid of void formers with beams between them. Your engineer selects the system based on soil classification, block fall and drainage. We build both to specification.

Yes. We work under builders and directly for owner builders. For owner builders we are clear about what the engineer drawings require, what inspections your certifier will want and how slab stage fits against your other trades, so the pour lands on schedule and passes inspection without drama.

AS 2870 is the Australian Standard for residential slabs and footings. It links your slab design to the reactivity of the soil on your block, classified from stable A and S sites through to highly reactive H sites. It is what makes a slab appropriate for your ground rather than generic, and building below the classification is the most common cause of slab failure.

It depends on the site classification, not the suburb. Corridor estates on engineered fill often call for waffle or stiffened raft designs, while stable sandy sites closer to the coast can take simpler systems. The engineer classifies the soil and designs accordingly, and we build exactly what is drawn.

Through the northern Gold Coast corridor, slab crews and concrete supply both run busy, so two to four weeks notice is a safe working figure once your drawings and site are ready. We coordinate directly with your builder or certifier on the exact date and hold points.

Yes. Secondary dwellings, extensions and granny flat slabs follow the same engineering and licensing requirements as a full house slab, just at smaller scale. Access is usually the main consideration on established blocks, and we regularly use concrete pumps where truck access is limited.

Always. A house slab must be built to the engineered design produced for your specific site classification. We work from those drawings, raise anything that looks inconsistent before the pour, and coordinate with the engineer or certifier where a steel inspection is required.

Yes. We pour slabs for builders and developers across the Gold Coast, including ongoing work through corridor estates. We work to your build program, coordinate certifier inspections, hold committed dates and carry QBCC licensing and full insurance. Call us to discuss ongoing subcontract work.