Do All Cooktops Fit the Same Cutout? Here’s What You Need to Know
- Jarod Yarbrough
- Aug 30
- 2 min read
Many shoppers assume that cooktops are standardized—that any 30-inch or 36-inch model will slide right into their existing countertop cutout. Unfortunately, that’s not the case. Cooktops vary by brand and model, and even small differences can create big problems during installation.
If you’re replacing an old cooktop or planning a kitchen remodel, understanding cooktop cutout sizes and compatibility can save you from unexpected costs and headaches.
Common Cooktop Cutout Sizes
Most cooktops are sold in standard widths, such as 30 inches or 36 inches. But here’s the catch:
A “30-inch cooktop” might actually require a cutout between 28 ½ inches and 29 inches wide.
A “36-inch cooktop” could need anywhere from 34 ⅜ inches to 35 inches.
That’s why it’s important to always check the cutout dimensions listed in the manufacturer’s spec sheet—don’t just go by the product name.
Depth and Corner Radius Differences
It’s not just width and height that matter. Cooktops also vary in:
Depth: Some cooktops sit deeper than others, which can interfere with drawers, oven cabinets, or gas/electrical hookups below.
Corner radius: The rounded corners of your existing cutout may not match the new cooktop, preventing it from sitting flush.
These small details can make the difference between a perfect fit and a frustrating remodel setback.
Why Replacing a Cooktop May Require Modifications
If your new cooktop doesn’t line up with your existing cutout, you may need:
Filler strips: Narrow pieces of trim used to close small gaps between the appliance and countertop.
Countertop modification: A contractor may need to enlarge or reshape the opening, especially if the corner radius or width doesn’t match.
While these fixes are possible, they can add cost, time, and stress to what should be a simple swap.
How CutoutMatch Helps Confirm Compatibility
Instead of flipping through spec sheets for hours, you can use CutoutMatch to instantly find cooktops that fit your exact cutout dimensions. Just measure your space, enter the numbers, and see which models are compatible.
This not only prevents costly mistakes but also makes shopping for a replacement cooktop quick and stress-free.
Conclusion
Not all cooktops fit the same cutout, and assuming they do is one of the most common remodel mistakes. By double-checking cutout sizes, paying attention to depth and corner radius, and using tools like CutoutMatch, you can ensure your new cooktop fits perfectly the first time.
Before buying your next cooktop, measure your space and confirm compatibility to avoid costly surprises.