Void Form 6"

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.