How to Measure Countertops for a Fast & Accurate Estimate: Step-by-Step
Written & Reviewed by AGS Stones Craftsmen
Master Stone Fabricators & Licensed Cabinet Contractors • Duluth, GA
Key Takeaways: Quick Summary
- ✓You do not need laser precision for an estimate; measuring along back walls to the nearest inch gives us all we need to quote materials accurately.
- ✓Multiply length in inches by depth (standard counters are 25.5 inches) and divide by 144 to find square footage.
- ✓Island overhangs typically require 12 to 15 inches of clear knee space for comfortable bar stool seating.
- ✓Note any special cutouts: undermount sink, cooktop, slide-in range, or full-height matching stone backsplashes.
- ✓AGS Stones provides 100% free in-home digital laser templating before cutting your slabs.
Before visiting our slab yard or requesting an online estimate, calculating your kitchen's rough square footage helps you budget accurately and compare stone pricing. Many homeowners worry about making measurement errors, but here is the good news: your preliminary measurements do not need to be laser-perfect.
Rough dimensions to the nearest inch give our estimators everything required to calculate slab counts and provide an exact, itemized quote. Our team at AGS Stones & Cabinets always verifies every millimeter with high-definition digital laser scanners before any cutting begins.
The 4-Step DIY Measurement Formula
Sketch a Simple Overhead Kitchen Map
Grab a blank piece of paper and draw a bird's-eye view of your kitchen runs. Label each section clearly: "Sink Run", "Refrigerator Run", "Island", or "Pass-Through Bar".
Measure the Length of Each Run in Inches
Run your tape measure along the back wall from corner to edge. For L-shaped corners, measure the full length of Run A all the way into the corner, then measure Run B starting from the corner.
Determine Countertop Depth
Standard kitchen base cabinet depth is 24 inches, resulting in a finished countertop depth of 25.5 inches (including the standard 1.5-inch overhang). For islands, measure the full depth across both the cabinets and the bar seating overhang.
Apply the Square Footage Formula
Multiply Length (inches) × Depth (inches), then divide by 144 to convert square inches into square feet.
Island: 84" × 42" = 3,528 sq in ÷ 144 = 24.50 Sq. Ft.
Total Kitchen = 45.75 Sq. Ft.
Ready to turn your measurements into an estimate?
Use our online quote form or send us a photo of your sketch to get factory-direct pricing in under 24 hours.
Serving the Greater Metro Atlanta Community
AGS Stones & Cabinets provides factory-direct fabrication, laser templating, and professional stone installation across all surrounding Georgia neighborhoods:
Common Questions from Homeowners
How accurate do my DIY measurements need to be for a quote?+
Ballpark measurements within 1 to 2 inches are perfectly fine for your initial quote. Once you choose your stone slab at our Duluth showroom, our licensed templater will visit your home with a precision 3D digital laser scanner to record measurements accurate to 1/32 of an inch before fabrication.
Do I need to account for sink cutouts and cooktop holes in my square footage?+
No. When calculating material square footage, measure the full rectangular runs straight through the sink and cooktop areas. Slabs are cut from solid pieces, and the fabricator cuts the openings out at the facility.
How much overhang should I calculate for island bar stool seating?+
Standard island overhang for bar stools is 12 inches (minimum 10 inches, luxurious up to 15 inches). If your stone overhang exceeds 10 to 12 inches, hidden steel support brackets must be installed beneath the stone to support the weight.
Can AGS Stones measure my kitchen for free in Metro Atlanta?+
Yes! We offer free in-home consultations across Duluth, Alpharetta, Roswell, Johns Creek, Atlanta, and nearby communities. Request a quote online or call (404) 952-4534 to book.
Ready to Experience the AGS Stones Difference?
Skip the retail middlemen. Visit our Duluth showroom to hand-select your exact full-size stone slabs, or schedule a free in-home digital laser templating estimate.
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