General and Common Questions
Do you use the same concrete used in sidewalks or driveways? How strong is your concrete? Do they crack? How thick are they?
We use a GFRC (Glass Fiber Reinforced Concrete) mix, which has a tensile strength of over 7,000 psi (almost twice as strong as your driveway). Using this high strength fiber mix concrete allows our pieces to actually flex a little bit and makes breaking or cracking unlikely.
Our standard slabs start at 1.5” thick but we make the edge thickness profile per your design idea. Our slabs utilize a foam center core to reduce weight, allowing us to make much larger pieces with less possibility of seams. We can also cast pieces as thin as ¾” thick. This allows us to make large section wall panels, as well as shelled pieces with drop edges to fit over sub structures (like a floating fireplace hearth, or ADA ramp sink hung on wall brackets) to give the look of thick profile look without the added weight.
Is concrete heavy, strong and durable?
We use a GFRC (Glass Fiber Reinforced Concrete mix) which is stronger and more flexible than what you would be used on a sidewalk or driveway. When making flat slabs, our glass fiber concrete design uses a foam center core in the slabs to reduce the overall weight of each piece. A typical slab is 40% lighter than it would be if cast solid, thus helping to make larger pieces without seams.
Do concrete countertops or sinks have seams?
Our slabs utilize a foam center core to reduce weight (40% lighter) thus allows us to make larger sections with less seams. Longer slabs, where multiple pieces may be needed, will have seams that are typically 1/8” or smaller. We can also help design decorative ways to either help hide or accentuate the seam with ideas like metal or tiles flush inlayed flush into the seam area, a bump up section at the area more size to draw the eye away from the seam along with other available designs.
Do you need a sub-base under the tops?
Mostly no when the concrete piece is designed as a flat slab. Some projects require a “shell design” which utilizes drop edges on all finished sides to hide the subframe and brackets, such as a floating fireplace hearth, coffee bar high top counter or ADA free hanging ramp sinks. The shell design achieves the heavy, thick profile concrete look without the added weight.
How much can a countertop cantilever with no supports?
We can cantilever (overhang) a max of 12” with no underside support. Anything over the 12” mark then brackets or other support are needed. Our years of experience can assist in designing the ideal base and supports.
How long does it take to complete a piece?
Typically turnaround time to cast, finish and ship a piece is 3 - 4 weeks once details have been finalized.
Are your sinks ADA compliant, how thick are they and how much do they typically weigh?
Yes we can free hang our concrete sinks to meet the height requirements for wheelchairs to fit under. Our typically ADA sinks are made with a 5” drop edge on all finished sides. Thus meeting ADA wheel chair height requirements of 34” to top of the sink and 27” to bottom lip.
Can you paint match colors? Can you customize colors?
We can create nearly unlimited colors or color combinations due our processing techniques using a variety of powder & liquid pigments. We can create custom colors and samples to design specifications often matching colors to paint and tile samples.
We can create nearly unlimited colors or color combinations with a variety of powder & liquid color pigments. We start with white cement as our blank canvas and colors, stains and dyes from there.
Will the concrete color fade over time?
The color will not fade but down the road the sealer may need to be freshened up to bring back the vibrance and sheen.
Are there different finish options? Can it look worn?
Yes, we can utilize different finishing tools, techniques and tricks to assist the concrete finish to a variety of moods. Crisp & modern, industrial aged warehouse, loved on worn-in antique, rustic cabin or farm house.
Can the sealer be glossy?
Yes, our standard matte finish sealer is more of the natural stone look but we can have higher sheen sealers to give the concrete color more vibrance and shine.
Can your concrete pieces be outside? Are they all weather?
Concrete has been used outdoor in all elements since its creation in 3rd century Rome. It wears extremely well in the elements and does not need to be covered. The sealer may need to be freshened up years down the road to bring back the vibrance and sheen but the concrete itself will stay solid.
What is the warranty?
All of our pieces include a 1-year structural warranty on manufacturing defects with products that have been handled, fabricated, installed and maintained in the manner recommended by Living Stone Concrete, which has the sole and final right to determine whether a claim is valid.