Concrete Slabs in Brisbane

Concrete Slabs Brisbane Homeowners Can Build On

Say you're planning a new granny flat, a garage extension, or finally getting rid of that wonky old shed base — the slab underneath is what makes or breaks the whole job. A concrete pad is only as good as the ground prep and mix design that goes into it, and that matters more in Brisbane than most places. Our clay soils swell up during the wet season and shrink back hard through a dry winter, and that movement puts real stress on a slab that isn't designed for it. Get the reinforcement and site prep wrong and you'll see cracking, doors that stick, or a shed floor that's suddenly out of level within a year or two.

Brisbane Concreting Pros handles concrete slab work right across Brisbane, from house extensions and granny flats to shed slabs, garage pads, and patio bases. Depending on what the slab needs to carry, we'll use steel mesh reinforcement, vapour barrier film to stop moisture rising through the concrete, screed rails to get the pour dead level, and either an N20 or N25 concrete mix for the right strength. If you're pouring a new driveway alongside a slab job, our concrete driveways work uses the same attention to base prep and finish.

Not every slab is built the same way. On reactive clay we'll often recommend a waffle pod slab, which uses a grid of polystyrene void formers and steel-reinforced ribs to spread load and cope with ground movement. For lighter jobs like a garden shed or a small patio extension, a simpler raft slab does the job without the extra cost. We size and reinforce every concrete foundation slab to suit what's going on top of it, whether that's a full house or a Colorbond shed. Get in touch to request a quote for slab construction anywhere in Brisbane, or learn more about all our concreting services in Brisbane.

• Site-specific slab design based on Brisbane's reactive clay soil conditions
• Waffle pod slabs for reactive ground, raft slabs for lighter structures
• Steel mesh reinforcement sized to the load the slab will carry
• Vapour barrier film installed to manage moisture rising from the ground
• Screed rail setup for a true, level concrete floor slab finish
• N20 and N25 concrete mixes selected to suit structural requirements
• House extension, granny flat, garage pad, and shed slab construction
• Free quotes for concrete slab installation across Brisbane suburbs