FilaVOID from BildaVoid Concrete Void Forming Systems features an interior expanded paper honeycomb core with face sheets glued at the top and bottom. FilaVOID is constructed from 400um box board and absorbs moisture easily to facilitate decomposition.  

FilaVoid is a lightweight, simple to install concrete forming system that is only available factory assembled.  

Available in panels sizes of 2400mm x 800mm, and in depths of 50mm, 75mm, 100mm, 150mm and 200mm, FilaVoid can be easily cut to the required length to ease installation.  

FilaVoid can be used to displace concrete volume where reduction in weight or cost is a consideration and can be stacked for greater void depth.