What Size Decal Do I Need for My Wedding Mirror?

You've found the mirror for your wedding welcome sign, chosen a design, and now you're wondering: what size decal should I order?

It's one of the most common questions we receive at Liemanco Shop.

The right size depends on your mirror's dimensions, shape, the design you've chosen, and how much empty space you'd like around the lettering.

Whether you're choosing from our personalised wedding mirror decals or working with your own inspiration, here's how we help customers find the right size for their DIY wedding mirrors.

1. Start With Your Decal Design

Before recommending a size, we always ask what kind of design you're after.

Wedding welcome mirror decals usually take up more space, as the lettering is the main feature. They often include a welcome message, your names and wedding date.

Selfie mirror decals are different. They're generally smaller in proportion to the mirror, leaving plenty of room for guests to see their reflections and take photos.

We provide a visual sizing guide for popular full-length mirrors. If your mirror isn't listed, you can use the closest size as a starting point or ask us for a recommendation.

 white vinyl lettering on gold vintage wedding mirror sign
selfie mirror decal on floor arched mirror

2. Measure Your Mirror's Usable Glass Area

Always measure the glass area of your mirror, excluding the frame. This is especially important for vintage and arched mirrors.

As a general guide, we recommend choosing a decal around 10–20 cm smaller than your usable glass dimensions to leave some breathing room around the lettering.

The ideal size depends on your design and mirror shape, so always measure out your chosen decal size on your mirror before ordering.

3. What Size Decal Should I Choose? A Real Example

Let's say your mirror has a usable glass area of 90 × 60 cm, and you'd like a traditional wedding welcome sign.

For one of our popular wedding decal design, we'd generally suggest:

  • 70 × 46 cm: Our preferred option, leaving more space around the lettering.

  • 80 × 52 cm: A larger option if you'd like the design to cover more of the mirror.

Personally, we'd recommend the 70 × 46 cm decal. We find that slightly smaller lettering creates a more elegant, professional-looking finish without overcrowding the mirror.

If your mirror is arched, we'd be even more inclined to size down to allow extra space around the curved edges.

Of course, this is just an example. Different designs have different proportions, so always check the measurements of the specific decal you're ordering.

4. Try This Simple Trick Before Ordering

Not sure whether your chosen size will look right?

Use masking tape to mark the decal dimensions on your mirror.

  1. Measure your usable glass area.

  2. Find the width and height of your preferred decal size.

  3. Mark those dimensions on the mirror using small pieces of masking tape.

  4. Step back and see how much space the design will occupy.

This is one of the easiest ways to visualise the size before ordering. You can even compare two sizes to see which you prefer.

5. Common Sizing Mistakes to Avoid

From helping customers with their wedding mirror decals, we've noticed a few common sizing mistakes:

  • Choosing a decal that's too small: Always visualise the actual dimensions on your mirror before purchasing.

  • Measuring the frame: Only measure the usable glass area.

  • Not considering empty space: Think about whether you want a larger statement design or something more understated.

  • Ignoring the mirror's shape: Arched and vintage mirrors may need smaller lettering to fit comfortably.

  • Not checking the size guide: Different decal designs have different proportions, so check the specific product measurements.

Taking a few minutes to measure can save you from choosing a size that doesn't suit your mirror. 

For more DIY tips beyond sizing, you can also read our complete guide to wedding decals and signage.

6. Not Sure What Size to Order? We're Happy to Help!

Every wedding mirror is different, and we know choosing a size from measurements alone can be tricky.

If you're unsure, simply send us:

  • Your mirror's usable glass measurements

  • The shape of your mirror

  • The decal design you're interested in, or an inspiration photo

  • Whether you prefer larger lettering or more empty space

You can also send us a photo of your mirror or include its measurements and shape in the personalisation box when ordering.

Still unsure? Feel free to contact us or use the chat button on our website. We're happy to recommend a suitable decal size based on your mirror and chosen design.

Our Final Advice

When choosing your wedding mirror decal, start with the design, measure your glass area, and visualise the size before ordering.

Our personal preference is to leave a little breathing room around the lettering for a more balanced finish. But ultimately, the right size is the one that suits your mirror and the look you're hoping to create.

Still planning your DIY welcome sign? Our step-by-step guide to making a wedding welcome mirror covers everything from finding the right mirror to styling it for your wedding day.

Once you're ready to choose your lettering, explore our personalised wedding mirror decals. And if you're unsure which size to order, we're always happy to help.