Microwave Mounting Template and Hardware: What to Check
Short answer: The mounting template is the paper guide that tells you exactly where to drill for the mounting plate and top screws. The hardware includes the rear mounting plate, screws, and often toggle bolts or a top bracket. To verify compatibility, compare the template with your cabinet width, check the wall material, and confirm the mounting points match your old microwave before you drill.
What the mounting template does
When you open a new over-the-range microwave, the large folded paper sheet is not packing material. It is the mounting template, the drilling guide for the installation. The template shows where the rear mounting plate goes and where the screws pass through the top of the cabinet.
Microwave ovens are among the most common kitchen appliances, and over-the-range models are one of the standard built-in styles. The template is the part of the box that turns the manufacturer's dimensions into a simple on-wall guide. It is the same shape as the mounting plate and usually includes centerline marks, so you can align the microwave under the cabinet before picking up a drill.
Before doing anything else, measure your space and compare it with the template. The template will not fix a cabinet opening that is too small, but it will tell you quickly whether the microwave is meant for that space.
- Rear mounting plate outline
- Screw hole positions
- Centerline marks for cabinet alignment
- Vent and clearance lines for the exhaust area
Hardware that usually comes in the box
The hardware bag in an over-the-range or under-cabinet microwave usually contains more than screws. The most important piece is the metal mounting plate, sometimes called a mounting bracket. The plate attaches to the wall and the microwave hangs from it. The screws are for different surfaces: wood screws for studs, and toggle bolts or drywall anchors for hollow wall sections.
A second bracket may be supplied for the top of the unit. On an over-the-range microwave, this top bracket helps stop the appliance from tipping forward and connects to the underside of the upper cabinet. Under-cabinet models may use a rear bracket plus screws that go up into the cabinet bottom.
Not every model includes every part, and mounting systems differ by manufacturer and model family. Always check the installation manual before buying replacement hardware.
| Part | What it does |
|---|---|
| Mounting plate | Attaches to the wall and supports the microwave's weight. |
| Wood screws | Secure the plate or bracket into studs or solid wood. |
| Toggle bolts | Hold the plate on hollow drywall where no stud is available. |
| Top bracket | Helps prevent tipping and connects the microwave to the upper cabinet. |
| Spacers | Fill gaps when the wall is not perfectly flat. |
How to verify compatibility before you drill
Start with the cabinet opening. Measure the width, depth, and height of the space where the microwave will sit. Compare the template with those dimensions. If the template is wider than the opening, the microwave will not fit. If it is much smaller, you may be left with an unfinished gap. Standard microwave sizes and how to measure for a microwave explain the important measurement points.
Next, check the wall. The mounting plate must sit flat. Tile, backsplashes, and uneven wall surfaces can create gaps behind the plate. Hold the template against the wall to see whether any tile or trim is in the way. Over-the-range microwave height helps with the vertical position.
If you are replacing an existing unit, confirm that the new mounting system matches the old one. Some manufacturers keep the same hole pattern across several models, but others change it with every generation. Compare the new template with the old plate before removing anything. The over-the-range vs countertop microwave article explains the difference between those two mounting styles.
For an under-cabinet installation, the template is usually held against the underside of the cabinet. The screws go up into the cabinet bottom or into the wall behind the unit. If you plan to place a countertop model under a cabinet, check whether that model includes a bracket or requires a separate mounting kit. See countertop microwave under cabinet for that option.
If the template or hardware is missing
Used or returned microwaves sometimes arrive without the template. Do not guess. The manufacturer's official support page usually has the installation manual as a PDF, and many manuals reproduce the template dimensions as a drawing. The mounting plate and screws may also be available as a replacement parts kit from the maker. GE Appliances, for example, lists manuals and parts on its own site, and Samsung's site includes current model pages.
A template from a different model is not a safe substitute. Keyhole slots, screw spacing, and vent positions vary. If you cannot find the correct template or hardware kit, contact the manufacturer or choose a different unit.
Whichever model you choose, the finished installation still has to keep the appliance within the safety performance standards for radiation-emitting products, which are overseen by the FDA in the United States.
Choosing a microwave for your mounting situation
The template and hardware matter most when the microwave is a replacement. If you are buying new, check the model's installation type before delivery: over-the-range units use different mounting hardware than built-in or countertop models. How to choose microwave installation type helps you narrow the options.
After you know the installation type, compare models by their mounting requirements. The best over-the-range microwaves guide covers the most common replacement category. If you also need a trim kit to fill gaps around the unit, read microwave trim kit compatibility before finalizing. For flush cabinet installations, the best built-in microwaves guide is a better starting point.
When you remove an old microwave, recycle it through an electronics recycler or a manufacturer takeback program. The old mounting plate and screws can be removed and recycled separately. The EPA notes that electronics contain valuable resources and should not simply be thrown into household trash.
A careful installation starts with the template and hardware that came in the box. Compare those parts with your kitchen, follow the manual's sequence, and use the buying guides to select a model whose mounting system fits your space. For a full replacement walkthrough, see the replacement microwave checklist.
What to pick for your use
| If you | Pick | Buying guide |
|---|---|---|
| You are replacing an over-the-range microwave | An over-the-range model with a template that matches your opening | Best Over the Range Microwaves in 2026: 15 Picks Compared on Specs |
| You want a full-size over-the-range unit for a common opening | A full-size model from the over-the-range guide | Best 30 Inch Microwaves in 2026: 12 Picks Compared on Specs |
| Your opening is narrower than the standard over-the-range size | A narrower model designed for smaller cabinets | Best 24-Inch Microwaves in 2026: 15 Picks Compared on Specs |
| You want a compact microwave mounted under a cabinet | A compact model with under-cabinet mounting support | Best Compact Microwaves in 2026: 12 Picks Compared on Specs |
| You want a flush built-in look with a trim kit | A built-in style microwave designed for trim kits | Best Built-In Microwaves in 2026: 12 Picks Compared on Specs |
Questions
Is the mounting template required for installation?
It is not legally required, but it is the most reliable way to locate the mounting holes. If the template is missing, use the manual's dimension drawing and a stud finder to transfer the positions carefully.
Can I reuse the old mounting plate?
Only if the new template's holes line up with the old plate. In most cases the hole pattern changes between models, so use the new plate that comes with the microwave.
Do all over-the-range microwaves use the same template?
No. Each model family can use a different mounting plate, screw spacing, and top bracket. Always use the template for the exact model you are installing.
What if my upper cabinet is not a standard width?
Compare the template with the actual opening before installing. Some models may fit, while others need a trim kit or a different installation style. See microwave trim kit compatibility for more.
Do I need to screw into a wall stud?
It is best to secure the mounting plate to at least one stud. If no stud is available, use the toggle bolts or anchors that came with the unit and are rated for the wall type.
Can a countertop microwave be mounted under a cabinet?
Some compact models can, but only if they include mounting hardware or use a manufacturer mounting kit. Check the manual before installing. See the guide on placing a countertop microwave under a cabinet for more detail.
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