VoidForm is now part of White Cap.

We are proud to be part of the White Cap family, and we will continue to support the construction community in protecting critical structures.

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Protecting More Projects

560

Large industrial projects have our void systems installed below their slabs.

178

Million sf of concrete structures have been protected from soil damage.

8250

Number of residential projects protected from foundation repair.

WHY VOIDFORM

Complete Support Around Structures

Soil rich in clay and minerals susceptible to water expansion exists throughout the US and Canada, causing millions of dollars in structural damage every year. Because expansion occurs not just up but out, VoidForm has a broad range of products to protect in and around concrete beams, walls, and slabs, as well as below-grade plumbing.

Product Overview

Corrugated Paper Void Forms

SureVoid

The SureVoid product line consists of degradable corrugated paper void forms designed to lose strength through moisture absorption. SureVoid creates an effective isolation solution for cast-in-place concrete and comes in a broad range of sizes and shapes to fit concrete structures.

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Plastic-Based Void Forms

StormVoid

Unlike paper void products, which degrade with moisture, the StormVoid product line’s performance is based on the non-degradable interior components. While both materials maintain a void space between slab and soil to prevent uplift damage from expansive soils, StormVoid can be installed in wet conditions.

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Utility Isolation Systems

PlumbingVoid

Our easy-to-install system protects below-grade plumbing and conduit from expansive and corrosive soils. Its durable design creates permanent void space and uniformly distributes loads, even on challenging construction sites.

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VoidForm Products

Available in Canada

VoidForm’s Canadian systems have been engineered to manage the unique challenges of the soil in the region and include CaraCor^™, StormVoid^®, and PlumbingVoid^®. Other system components include cover boards, vapor barriers, and backfill retainers.

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“

The VoidForm team went above and beyond in making this complex project successful. Not only did all the pieces fit like a glove, but their labeling and mapping of the pieces were perfect. I also really appreciate Nick coming out to the job site to check on the process and see if we had any issues.
Tony PadillaTotal Concrete Services

“

It is very easy to get quotes. Once the order is placed, it takes no time to get processed and headed our way. VoidForm is one of the better suppliers I deal with.
2025 NPS survey respondent

“

I really like how easy it is to handle the boxes. Installation was super easy. The customer service was beyond excellent. Our salesperson was very attentive to our needs.
2025 NPS survey respondent

“

Great product! At first, I was kind of skeptical, but once you get the hang of it, it moves pretty quickly — no compaction, just a little backfill. A great product to help stop damage from ground movement.
2025 NPS survey respondent

“

Your product has been superior to all the others that claim to be equal. For that reason, we will ALWAYS recommend using VoidForm and not the other brand.
2025 NPS survey respondent

Spec 03 1001

Download our Spec Sheet for plastic and corrugated paper void forms.

Our Products

Learn more about our Carton Form, Utility Isolation, and Soil Retainer Systems.

Our Projects

See VoidForm in action across diverse commercial, industrial, and residential projects.