Concrete Countertop Cost — 20 ft Kitchen, $100/sq ft
A custom concrete countertop spanning 20 feet at $100/sq ft with high fabrication costs is a premium choice.
How to use this tool
- Add up the length of all counter runs in inches.
- Enter the counter depth (about 25.5 in for standard kitchens).
- Enter the material price per square foot for your chosen surface.
- Add a flat fabrication and installation fee.
- Read the area, material cost, and total estimated cost.
Calculate the cost of custom concrete countertops for a large open-plan kitchen with an extended run.
Frequently asked questions
- How do I calculate countertop square footage?
- Multiply the total length by the depth in inches, then divide by 144 to get square feet. A 120-inch run at 25.5 inches deep is 21.25 sq ft.
- How much does a countertop cost per square foot?
- Material runs from about $10-$40 per sq ft for laminate up to $100+ for premium stone and quartz, plus a fabrication-and-install fee for templating, cutouts, and edging.
- Does this include sink cutouts and edging?
- It includes a flat fabrication-and-install fee but not per-foot edge upgrades, extra cutouts, backsplash, or slab waste. Treat it as a baseline and add those extras.