Engineers Trust StormVoid® to Reduce the Risk of Expansive Soils
Strong enough to withstand steel and wet concrete placement but weak enough to collapse as the soil expands, the StormVoid system ensures a critical void space beneath and around concrete, protecting structural integrity and reducing liabilities.
That’s why more engineers and the construction community rely on StormVoid to mitigate the risk of swelling soils while reducing costly weather-related delays.

Why StormVoid?
Trusted by Engineers
For over 40 years, engineers have been specifying VoidForm’s products to protect concrete projects on expansive soils.
End-to-End Support
From initial specifying questions to take-off services and on-site installation guidance, the VoidForm team offers full support at every step.
Millions of Square Feet Installed
Successfully installed under 162 million square feet of concrete to date, protecting schools, airports, data centers, EV battery plants, residential developments, and hospitals.
Stay on Schedule
Prevent costly weather-related delays with a weatherproof void system designed to withstand the unpredictable nature of hurricane season in the South.
Newly revised and updated!
Download the 03 1001 Product Spec Sheet
Simplify your project planning with the StormVoid product spec sheet.
This detailed document covers key information on material properties, types of void forms, and other system components like soil retainers, cover boards, and vapor barriers. It also provides guidance on installation best practices for on-site contractors.
Mitigate the risk of expansive soil and streamline the design process by specifying Void Form in your plans.

Download Spec
StormVoid Protection in Action
System Components
Beams
StormVoid Beam supports vertical walls and beams until the concrete is cured. Beam products are designed to support walls and beams from 2’ to 10’ tall.

Piers
StormVoid Pier is a pre-manufactured, non-field-cut, plastic void form that fits your specific pier diameters. Our take-off services provide exact dimensions, ensuring even concrete placement.

Slabs
StormVoid Slab is placed under structural slabs typically between 6” and 60” thick. They are available up to 12” void height but can be stacked for greater void space.
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