Bildavoid manufactures corrugated fibreboard construction products, commonly known as "void forms" or "carton forms", which create space between concrete structures and expansive soils, thereby isolating the concrete from the swelling ground.

Bildavoid products provide a temporary support platform for concrete placement until the structural slab sets and can support itself across drilled piers, pads, intermittent footings, or other concrete work.

The Bildavoid material, lying under structural concrete construction, gradually absorbs ground moisture and loses its strength after the concrete has set, creating a space into which soil can expand without causing damage.