Concrete Void Formers
Every cubic metre of concrete you don’t need to pour is money saved, on materials, on transport, on labour, and on the load your foundations have to carry. That’s the job of a concrete void former.
Enviroclad’s polystyrene void formers sit inside your formwork before the pour, occupying space where solid concrete isn’t doing any structural work. Less concrete in, same performance out.
What Goes Into Our Concrete Void Formers
Our void formers are manufactured from Expanded Polystyrene (EPS) at our facility in Berri, South Australia. EPS is the industry standard for concrete void filling because it ticks every box the job demands:
Easy to handle and place without heavy machinery.
Holds its shape through the pour and curing process.
Won’t absorb water or degrade inside the slab.
Matched to your project’s specific load requirements.
We manufacture our EPS on site, which means we control density, strength, and cut dimensions from start to finish. Every concrete void filler is produced to your project specs, not pulled off a shelf.
BROCHURES &
TECHNICAL
DOCUMENTS
Waffle Pod Slab System Brochure
Waffle Pod Mesh Rail Brochure
Big Mouth 4 Way Spacers Brochure
Roads, Bridges, Slabs, Foundations, and Everything In Between
Void formers in concrete slabs are standard practice across civil and commercial construction.
Our polystyrene void formers regularly go into:
- Roadways and underpasses
- Bridge decks and abutments
- Shopping centre floor slabs
- Multi-storey suspended slabs
- Tank cradles
- Embankments and retaining structures
- Foundation systems
Concrete void fillers can be used as a temporary application or as a permanent part of your formwork system.
The compressive strength is specified to match the job, not the other way around. If your project also calls for EPS foam blocks for geofoam, packaging, or other EPS applications, we produce those at the same Berri facility.
Customised Concrete Void Fillers
We don’t sell standard sizes and hope they fit.
You give us the dimensions and compressive strength your project needs, and we manufacture to match. Clean voids, no site trimming, no wasted material.
Our team includes an in-house engineer and a manager with deep technical knowledge of EPS across the construction industry, so if you need advice on density, configuration, or load specs, you’re talking to people who actually know polystyrene void formers inside and out.
Enviroclad also manufactures cool room panels and cool room wall panels for temperature-controlled builds, all from our Berri, South Australia, facility.
Concrete Void Filler: Delivered From Berri to Your Site
All of our void formers in concrete slabs are manufactured in Berri, South Australia. We run our own trucks into Adelaide and the surrounding areas almost daily, and service the rest of the state from Port Lincoln through to Mount Gambier.
For interstate projects, we work with trusted third-party freight companies to get your order where it needs to be across Victoria, NSW, and up into the Northern Territory. Because polystyrene void formers are so lightweight compared to other construction materials, freight costs stay low even on larger orders.
Gallery
Talk to Us About Your Next Project
If it’s a single slab or a multi-stage civil project, we’ll manufacture your polystyrene void formers to spec and get them to site. With Enviroclad, you’ll get a direct line to the people who make the product. Get in touch with our team or give us a call for a free, no-obligation quote.