The Fortress System

A Complete System For A Complete Solution

Engineered and tested to provide the strongest anchoring system top to bottom.

Fortress was the first company to develop a top-of-wall anchor.


The Fortress top anchor is post-tensioned after installation.

This ensures that the top anchor and wall are engaged under tension, and holding fast, when the job is complete. No other company has a post-tensioned wall anchor.

A stronger connection.

The Fortress top anchor is mechanically fastened (bolted) to the rim joist, not the sill plate. By connecting to the rim joist, the Fortress top anchor engages not only the sill plate, but the building’s floor system as well, providing a stronger, more durable anchor.

Bolting to the wide face of the rim joist is safer.

By contrast, drilling and bolting into the edge of a sill plate weakens the wood by taking up a large cross section. In addition, many older homes do not have enough sill plate to foundation wall connections to guarantee that the sill plate will hold under stress. Finally, anchoring a carbon fiber strap to the sill plate, instead of the rim joist, does not engage the floor system (first story floor to top of basement wall).

The best bottom anchor in the industry.


The Fortress anchor grips your masonry and arrests movement.

Shear slides usually occur near the bottom of masonry walls where shear forces are greatest. You already have an asset: your basement floor. A basement floor already holds the bottom of your wall in place. The Fortress bottom anchor uses this asset to secure the Carbon-Kevlar Strap and resist shear slides. The Fortress anchor is used in both masonry and poured concrete.

Using the basement floor as the anchor points is superior to the footing.

Do you know the condition of your footing? You can’t see it. What will happen if your contractor drills into it? What if your contractor cuts the critical steel reinforcement in your footing? It could crack or settle, and you won’t know it until after your basement contractor is long gone. Don’t risk your footing. The Fortress anchor uses the strength of your existing concrete floor to secure the bottom of your basement wall.

The best solution for bottom-of-wall anchors.

The Fortress bottom anchor takes the proven American Concrete Institute recommendation for anchoring carbon fiber straps and makes it better.

What goes into the Fortress Carbon-Kevlar strap?


Not all carbon fiber is created equal.

Before considering another carbon fiber system, ask how their fibers are arranged. Conventional manufacturing commonly weaves the carbon. This produces an attractive woven pattern, but this method also crimps the fibers while going over and under each other. When force is applied to a woven pattern, the bent fibers try to straighten out, which reduces effectiveness. Fortress has always been more concerned with having the best composite performance. All strength in fiber composites is gained when the fibers are straight. Unidirectional fibers lay flat, eliminating flex when force is applied. The unidirectional method Fortress has developed creates a product twice as strong as products using woven carbon fibers. This Fortress propriety manufacturing process allows for a true unidirectional carbon product, which is the perfect tool to reinforce foundations.

You can see that it’s done right.

Open Grid Technology, unique only to the Fortress Carbon-Kevlar Strap, assures that no voids are left behind when installing the strap. You can literally see that the epoxy bond is 100% complete. No Fortress competitor with unidirectional, bidirectional or solid plate products can visually confirm that voids do not exist between their product and the bonded substrate. The Open Grid Technology is a Fortress original, fabricated in Holland, Michigan using the finest materials available.

A second step for a stronger bond.

Fortress 2-Step-Strong epoxy bonding process assures that a high strength bond to concrete and masonry is formed. Fortress’ bond is so strong that the surface of the concrete or block will fail before the bond fails. Unlike other systems’ where their strap is simply pressed and rolled into an adhesive, Fortress goes further. After the Fortress strap is pressed into place, a strip of specially designed, clear Mylar is placed over the strap. This second step of pressing and rolling the Mylar into the epoxy over the Carbon-Kevlar strap forces the epoxy into and around every carbon fiber group. This creates a small vacuum under the Mylar so air and voids are forced out. This provides visual assurance that all air bubbles and voids are eliminated. Our process prevents excess moisture and humidity from weakening the epoxy curing process. No one else takes this extra step to verify you get a completely bonded strap.

Ready to get your wall permanently fixed?

Contact us and we'll connect you with a Fortress-certified installer who will get it done right.

Fortress Stabilization Systems

184 West 64th Street
Holland, MI 49423
Phone: 616-355-1421
Toll-Free: 800-207-6204
Fax: 616-355-1428

Our Fortress Stabilization System Is Patent Protected

Patent Numbers 7743585, 7823354, 8142102, 8367569, 9034775, 6746741, 6846537, RE39839, 9528286, 9290956, 9290957, 9790697, 3040496. Additional patents are pending.

DuPontTM and Kevlar® are trademarks or registered trademarks of E.I. du Pont de Nemours and Company.