Current Projects
Whiskey River
Whisky River
The Epicenter
Charlotte, NC


Our custom countertops are available in a wide range of colors to match your style.
ground
Ground Amber Ground Amethyst
Ground Brick Ground Charcoal
polished
Polished Sand Polished Stone
Polished Tahoe Polished Wine
view all colors»
FAQs
For Homeowners and Designers
Concrete has uses beyond its utilitarian roles. It can be transformed into virtually any shape. By adding color pigments, aggregates, and varying the surface finish, concrete becomes a one of a kind work of art for your home. The possibilties are endless.

The biggest advantage of concrete is that it can be completely customized. Everything from the shape, color, and texture can be created to fit your ideal design. Cost comparisons between materials should be done on a project-by-project basis; however, concrete provides many cost saving alternatives for the do-it-yourselfer.

Yes, absolutely. Style is dictated by design; concrete can adapt to any look. For example, edge detailing and decorative inlays can help a concrete counter blend into more traditional environments.

Concrete counters are allowed in food-service areas, but you should check with your local health department official first before starting any commercial project.

Outside use is possible. Consideration must be given to the wear and tear from weather and natural elements. Most iron-oxide pigments are color-fast, including the reds, yellows, browns, and oranges (as far as black, synthetic black oxide is more colorfast than carbon black). Greens are a bit more unpredictable, and blues (except for very expensive cobalt blue) are especially unpredictable when subject to UV rays.

As with marble or granite, we do not recommend cutting directly on a concrete surface, as it could result in scratches and gouges in the finish of your counter as well as harm the blades of your knives.

Concrete is heat-resistant but is subject to thermal shock if a red-hot object is placed directly upon it. Like granite, the exposed area may flake or chip away if too much heat is applied. In addition, the heat could damage the sealer and wax applied to the surface. We recommend using trivets for hot cookware.

As with marble and granite, concrete corners and edges can chip if struck by a hard object. Sealing and rounding the inside corners of the mold with silicone will ease the edges and prevent chipping. Hairline cracks can also develop, but these are not structural failures; rather, they are inherent characteristics of the material.

Concrete has approximately the same porosity as marble. Acids (especially red wine, lemon juice and vinegar) will etch the surface if not cleaned up right away. Sealing and applying a finishing wax to the counters will help them resist stains, but they aren't acid-proof and won't make your counter impervious to stains. Luckily, like aged butcher block or marble, a patina on concrete countertops can actually enhance the character of the surface, so a spill is not necessarily a disaster.

Onex frequently asked questions
Concrete Answers
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Onex, inc. based in Charlotte, NC was started as a high temperature concrete and masonry construction company. We have a reputation of supplying high quality products and services.  We have poured precast shapes, build forms and finished refractory for many years. Today, we are using years worth of knowledge to build concrete countertops. Our management team provides material sales, technical support, design and installation.  We are working with industry leaders such as Cheng Design and Interstar Corporation who have been an integral force behind the concrete revolution transforming concrete from a basic building block into an art form. Onex has a warehouse in Charlotte, NC that houses its concrete countertop production.  We have all the tools necessary to produce a high quality product including mixers, vibrating tables, and planetary grinders. Onex staff has completed the CHENG Fundamentals and Advanced Concrete Countertops Training as well as Increte Systems Decorative Concrete Factory Training for Staining and Stamping.