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How to Get the Perfect Fit for Your New Cooktop: A Complete Measurement and Sizing Guide

A cooktop is the centerpiece of your cooking space — it deserves a perfect fit. The difference between a cooktop that "almost fits" and one that fits perfectly often comes down to ⅛-inch differences and overlooked details that emerge only on installation day. By then, returns are inconvenient at best and expensive at worst — restocking fees, return shipping, lost time, and the frustration of starting over. This complete measurement guide walks you through the 6-step measurement process, standard cutout dimensions for every common cooktop size (24/30/36/42/48 inch), fuel-type compatibility considerations (electric/induction/gas), the 5 most common measurement mistakes that lead to costly returns, and a 10-item pre-purchase checklist that ensures your new cooktop arrives ready for a smooth installation. Includes special-case guidance for non-standard cutouts and 8 detailed FAQs.