Opening size is only one measurement; doors, handles, ventilation, utilities, and delivery paths can decide whether an appliance fits.
Measure the route into the kitchen
Record exterior doors, hallways, stairs, elevators, corners, ceiling heights, and any railings or trim that narrow the path. Compare the packaged dimensions—not only the installed dimensions—with the delivery route. Confirm who removes doors or handles and whether that affects warranty or installation.
Use the manufacturer installation document
Retail dimensions may omit required air gaps, anti-tip devices, water connections, power cords, gas regulators, trim kits, or door clearance. Download the current installation specification for the exact model. Give it to the cabinet designer, contractor, electrician, plumber, and installer before rough-in work.
Test door and drawer conflicts
A refrigerator can fit its opening and still fail to open far enough for drawers to clear. Dishwasher handles can collide with adjacent drawers. Wall ovens, range doors, and microwave doors require standing space. Map every swing against islands, walls, handles, and walking paths.
Plan service access
Connections and shutoffs should be accessible without damaging finished work. Understand how an appliance can be removed for service and how flooring transitions affect movement. Keep model and serial numbers, installation photos, receipts, and warranty records together after delivery.
Before work begins
Conditions, products, contracts, codes, and installation requirements vary. Verify current documents for the exact project and use appropriately licensed or qualified professionals where required.