Cooktop Cutout Size Guide (30 & 36 Inch + Fit Tips)
Most cooktop installation problems happen because the cutout size is measured incorrectly. Even small differences can lead to costly countertop modifications or returns.
Standard Cooktop Cutout Sizes
Most built-in cooktops require a countertop cutout opening approximately:
30 Inch Cooktop:
Width: 28 1/2" to 29 7/8"
Depth: 19" to 20"
36 Inch Cooktop:
Width: 34 1/2" to 35 7/8"
Depth: 19" to 20"
⚠️ Even a difference of 1/4 inch can require modifications to your countertop.
Cooktop cutout dimensions vary slightly depending on the brand and model. Before purchasing a new cooktop, it is important to measure the countertop opening carefully.
Many homeowners discover installation problems after the cooktop is delivered because the countertop opening does not match the appliance dimensions.
To avoid this problem, verify the appliance measurements before purchasing.
Measure the width of the countertop opening from left to right.
Measure the depth of the opening from the back edge to the front edge.
Check that the countertop is flat and free of obstructions underneath.
Write the measurements using decimals (example: 29.25 inches).
Even small measurement differences can lead to costly countertop modifications.
Use Appliance Fit Check to instantly compare your cooktop with your space before you buy.
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