Why this is trickier than it sounds
There's no universal standard for built-in grill cutouts. A grill sold as a 36-inch model might need an opening a few inches narrower than that, and the exact width, depth and height vary from brand to brand and sometimes between model generations of the same brand. Two grills with the same nominal size can need openings that differ by an inch or more.
That matters because island openings are cut into block, stone or tile. A grill that's slightly too big won't go in. One that's too small leaves a gap the grill's lip may not cover. The good news is that many common grills have cutouts in similar ranges, so with accurate measurements there are usually several options.
The process, start to finish
- 1
Identify the old grill
Find the model and serial number (usually on a tag inside the drip tray area, on the back of the control panel, or on the underside of the grill). If the brand still exists, its current cutout specs may be a close match. See our guide to finding model and serial numbers.
- 2
Measure the actual opening
With the old grill removed or carefully measured around, record width, depth and height of the opening at several points. Our cutout measuring guide covers exactly how.
- 3
Compare to published cutout specs
Every manufacturer publishes cutout dimensions in the installation manual. Compare your opening to each candidate grill's spec, not to its nominal size or its outside dimensions.
- 4
Check the gas and power
Note where the gas line enters the opening, the fitting type, and whether there's an outlet. A new grill's gas inlet may be on the other side, which can mean adjusting the flex connector inside the island.
- 5
Check the jacket and ventilation
If the island has combustible framing, the new grill may need its own insulating jacket, which changes the cutout. Make sure the island has the vent openings the new grill's manual calls for.
- 6
Install and test
Set the grill, connect gas with an appropriate connector, leak test every joint, then light and check every burner.
If your opening doesn't match anything exactly
| Situation | Common solutions |
|---|---|
| Opening is slightly too large | Many grills have a lip or flange that covers small gaps. Some brands sell filler or trim kits. A stainless trim strip can close a narrow gap neatly. |
| Opening is slightly too small | Widening a block or masonry opening is possible but involves cutting the island and its countertop. Choosing a different grill is usually better. |
| Opening too shallow for modern grills | Some older grills were shallower. Check depth carefully, including any rear clearance for rotisserie motors or gas connections. |
| Height is short | The grill body has to fit below the countertop. A short opening rules out deeper-bodied grills. |
| Old grill had an insulating jacket | Measure inside and outside the jacket. A new grill may or may not need one, depending on the island construction. |
Gas type and conversions
If the island is plumbed for natural gas, buy a natural gas grill or one with an approved manufacturer conversion kit. The same applies to propane. Running a grill on the wrong gas without converting it is dangerous. If you're switching from a propane tank to a natural gas line during the replacement, that's a good time to plan it; our propane to natural gas conversion page explains what's involved.
Should you replace at all?
Before ordering a new grill, confirm the old one is truly done. If the firebox and hood are sound, a restoration with new burners, igniters and heat plates avoids the fit question entirely. Our repair or replace guide lays out how to decide.
If it is time for a new one, our built-in buying guide covers what to look for beyond fit.
Information to have ready
Whether you're shopping yourself or asking for a quote, these make it much faster.
- Old grill brand, model and serial number
- Opening width, depth and height (front, middle and back)
- Countertop material and overhang at the front edge
- Gas type and where the line enters the opening
- Whether there's an outlet in or near the island
- Photos of the grill in place and of the opening from above
- Island construction (block, stone veneer, steel or wood framing)
Common questions
Can I buy the same model again?
If it's still made, sometimes. Manufacturers update models, and a newer version may have a slightly different cutout. Always check the current installation manual.
Do I need to remove the countertop?
Usually not. Built-in grills drop in from above and the lip rests on the countertop. Countertop work is only needed if the opening has to be enlarged.
Can you supply and install the new grill?
Yes. Surefire is a dealer and can match a grill to your opening, install it in place and connect it. See grill sales and replacement.
Related guides
How to Measure a Grill Cutout
How to measure the width, depth and height of a built-in grill opening, and why you should compare it to the manufacturer's cutout spec rather than the grill's size.
Buying adviceChoosing a Built-In Grill
A practical buyer's guide to built-in gas grills: what to prioritize, what's optional, and the island and gas questions to settle before you pick a model.
Buying adviceRepair or Replace Your Grill?
A practical way to decide whether your grill needs a few parts or a replacement, based on what techs actually check first.
Buying advicePremium Grill Brands Compared
A fair, service-side look at the premium built-in grill brands common in Los Angeles backyards, and what to weigh when choosing between them.
Care & how-toFinding Your Grill's Model and Serial Number
Where grill makers hide the rating plate, how to read it when it's faded, and what to do if it's gone. Saves time and wrong parts on any repair.
RepairNatural Gas & Propane Problems
Supply-side problems on propane and natural gas grills: wrong orifices, undersized lines, regulators and bad conversions.
RepairGas Smell at the Grill
Smell gas at the grill? Safety steps first, then the common leak points and how a technician finds and fixes them.
RepairRegulator & Hose Replacement
Worn propane regulators, cracked hoses and tired natural gas flex connectors replaced and leak tested.
Send us your measurements
Text us the old grill's model, your opening dimensions and a couple of photos, and we'll come back with grills that fit and a quote.