Polystyrene formers & void formers are widley used in modern construction, civil engineering, and specialist manufacturing,  balancing structural strength, speed of execution, and cost efficiency is a constant challenge. Whether working on groundworks, poured concrete slabs, or specialised engineering projects, structural designs often demand precise openings, weight reduction, and reliable formwork.

This is where Polystyrene Void Formers—crafted from Expanded Polystyrene (EPS)—have become an indispensable solution for contractors and engineers alike.

What Are Polystyrene Void Formers and Formers?

Polystyrene void formers are lightweight blocks or custom-profiled shapes placed before concrete is poured to create hollow spaces, openings, or recesses within a structure. Once the concrete cures, these formers either remain permanently encased inside to reduce dead load or are removed in temporary applications.

Polystyrene formers, on the other hand, encompass a wider range of custom-shaped EPS molds used to create specific architectural details, arches, or high-density profiles for specialized applications such as furnace engineering and repair.

foamcutting.co.uk  is often chosen for expanded polystyrene (EPS) formers and void formers due to key technical, financial, and practical advantages.

Why choose Foamcutting?

Custom CNC Precision Cutting – Bespoke Profiles: Standard off-the-shelf void formers are usually basic blocks, but specialised foam cutters use CNC hot-wire and routing technology to cut complex, custom shapes.  

Exact Fit – Whether you need arch formers, circular voids, tapered beams, recessed channels, or custom foundation profiles, custom foam cutting eliminates on-site modifications and manual trimming.

Fast Turnaround – Buying directly from us reduces turnaround times and lead times for bespoke projects compared to ordering standard pre-molded architectural units.