Void Form – Below-Slab Expansion Solution Protect your slabs from soil movement and expansion with reliable, jobsite-ready void form. Void form creates a temporary space between the soil and structural concrete, allowing for ground heave caused by expansive soils. Once the form compresses or deteriorates, it leaves a gap that helps prevent slab cracking, lifting, and structural damage. Ideal for structural slabs, grade beams, pier caps, and foundation systems where soil movement is a concern — especially here in Colorado’s expansive clay conditions. Features: Creates space to accommodate soil expansion Helps reduce slab and beam heaving Lightweight and easy to position Designed for below-slab and structural applications Jobsite durable packaging for easy handling Common Applications: Structural slabs on grade Grade beams Pier-supported foundations Commercial and residential foundation systems A smart preventative measure that protects the integrity of your concrete from the ground up.
