Wedding welcome sign mirror: layout and lettering guide

For a 24 by 36 inch mirror and four short lines, set the letters 1 7/8 inches tall. Width sets the size, not height, on almost every welcome sign. Enter your mirror size and wording in the layout tool on this page, check the letter height it gives, and print full-size layout sheets to measure the guide lines from. The sheets show line positions, not letter outlines to trace. All sizes here are our estimates for plain sans lettering, and the assumptions are listed below.

Fit table: letters per line for five mirror sizes

Spaces count as characters. Read across to see how long a line can be before the letters have to shrink.

Table: Characters per line by mirror size and letter height (our estimate, assumptions below)

Every number here assumes a plain sans face with each character 0.6 times the letter height wide. Script and brush lettering, which many welcome mirrors use, does not follow a fixed width per character, so the real count can be well off. Letter one sample line in your style on paper, measure it, and divide the table’s line length by what you measured to see whether to scale the letters down.

“Welcome to the wedding of” is 25 characters. On a 24 by 36 inch mirror it only fits on one line at letters under 1 1/2 inches. Break it in two and the letters can grow.

Height rarely limits you, unless you stack many short lines. At 2 inch letters the 24 by 36 inch mirror still has room for 11 lines. Width is the constraint, so most decisions below are about shortening the longest line.

Worked example: a 24 by 36 inch mirror

Every line gets the same height, which keeps the guide lines easy to check with a ruler.

Break the lines before you size the letters

Same 38 characters, “Welcome to the wedding of Maya and Sam”, same 24 by 36 inch mirror. Only the line breaks change.

Table: Line breaks against letter height on a 24 by 36 inch mirror (our estimate)

Going from two lines to the three-line breaks buys 3/8 to 7/8 of an inch of letter height at the same sheet count. Rows 3 and 4 give identical numbers, so choose between them by how the phrase reads aloud: row 3 keeps “Welcome to the” together, row 4 keeps “the wedding of” together. Row 2 gives up 1/2 inch of height against row 3 to keep “Welcome” alone on a line.

Wording variants and what they fit

The line breaks above assume one sentence. Welcome mirrors also run shorter or add the date. Same 24 by 36 inch mirror, five wordings:

Table: Wording variants on a 24 by 36 inch mirror (our estimate)

Dropping “to the wedding of” is the single biggest gain: 2 1/2 inch letters against 1 7/8 inch for the worked example. The date line costs nothing here, because “June 14, 2027” is shorter than the longest line either way. If you want more wording than these, short quotes that fit on a sign lists lines you can test against the same table.

Long names push the letters down

Names are where the lines get long. Here is the same mirror with two long names, compared with a bigger one.

Table: Letter height for a long-names sign (our estimate)

Dropping “to the wedding of” (row 1 to row 2) adds 1/4 inch on the 24 by 36 inch mirror, which is 20 percent, and 1/4 inch on the 30 by 40 inch mirror, which is 15 percent. Putting “and” on its own line between the names (row 2 to row 3) adds 1/8 inch on the smaller mirror and 1/4 inch on the larger one. A bigger mirror is the other lever, and how far the sign will be read from is the third. See how big letters need to be for the distance if the sign will hang farther back.

Pick the mirror by the letter height you want

Same four lines as the worked example, five mirror sizes.

Table: Default text on five mirror sizes (our estimate)

The two distance columns come from two sign vendors’ rules, both written for signs in general, not for lettering on glass. The 10 feet per inch figure is the conservative one, so the true readable distance is probably longer, and the 25 feet per inch figure assumes favorable conditions. Treat the real answer as somewhere inside that range. The seating chart mirror page uses the same two figures. A welcome mirror is usually read from a few feet to a few steps away, which every row covers, so pick the size by how it looks in the room and by the number of layout sheets you are willing to print and tape. We give no mirror weight figures: weight depends on glass thickness and frame, so check the seller’s listing and your hanging hardware.

Reflections are a judgement call, not a sourced rule. The glass shows the room behind the reader, which can compete with the letters, so on a mirror facing a bright window or a busy room we would go to the larger letter height rather than the smaller one.

How the numbers are made

You can check each figure by hand. These are our assumptions, not rules.

1. The border is 2 inches on every side. Nothing is lettered inside it.
2. Each character, including spaces, is 0.6 times the letter height wide. This is the plain sans assumption from the first table.
3. Lines are spaced half a letter height apart.
4. Letter height is the smaller of the width limit and the height limit, rounded down to the nearest 1/8 inch.
5. A layout sheet covers 8 by 10.5 inches of letter paper in portrait, after printer margins.
6. The text block is centered on the lettering area.

The reading distances are the two vendor rules from the sources list, applied as written. Where the letters should sit between “comfortable” and “readable” is a judgement call: we treat 1 inch letters as the smallest we would use for a sign people read while walking in, and 2 inches as comfortable, with no test behind either figure.

Pen tip is a second real limit that the table does not capture. A paint pen draws a stroke of one fixed width, and a letter needs a stroke in proportion to its height. In our judgement, check the tip size printed on the pen against the letter height you chose, and use a broader tip for 3 inch letters than for 1 inch letters. Draw one letter on paper with your pen before you touch the glass.

Steps: from printout to glass

1. Measure the visible glass, not the frame. A thick frame hides inches of your lettering width.
2. Enter the size and your wording. Pick the break you like best from the preview.
3. Print the layout sheets at 100 percent scale, not "fit to page". The mirror tutorial we read says to match the mirror's real size.
4. Trim the sheets and tape them together with the edges butted, on a wall or table beside the mirror. The tutorial does the same. Taped over the glass, the sheets would hide the marks you are trying to make.
5. Each sheet shows the top and bottom of every line and where each line starts and ends. With a ruler, measure from a fixed reference such as the bottom edge of the printed layout, and mark the same distances on the glass in chalk marker, measuring up from the bottom edge of the glass.
6. Join the marks into straight guide lines with the ruler, then letter one line at a time with the paint pen. Wipe the chalk off last.

Marker choice and cleanup are the same as for a seating chart. See the matching seating chart mirror for the detail, since the tutorial both pages cite covers it. Lettering a full set for the entrance? Which signs a wedding needs lists the others, and the welcome sign hub covers poster board versions.

Three mistakes and fixes

Lettering before the wording is final. A changed date means scrubbing glass. Fix: send the layout to your partner and whoever is helping you, and get a yes first.

Sizing the mirror from the frame. Fix: measure the glass you can see, then enter that.

Letting one long line set the size. One 25-character line caps every other line on the mirror. Fix: break it, or drop a word.

Marker and cleanup

The tutorial we checked uses an oil-based paint pen over chalk guidelines, wipes the chalk off with a dry paper towel and removes the paint with acetone or a blade. That is one source, not a test. Try your pen on a spare piece of glass, let it dry, and see what it takes to remove it. If the mirror is a rental or a family piece, ask the owner before you letter on it, and keep the acetone away from any painted or coated frame.

Questions people ask

How do you make a welcome sign on a mirror?

Measure the visible glass, then break your wording into short lines so the longest line is as short as you can make it. Print the layout sheets at full size and tape them together on a wall or table beside the mirror, as the tutorial we checked does. Each sheet shows where every line starts, ends and sits. Use a ruler to carry those measurements to the glass, mark them with chalk marker, join the marks into guide lines and letter along them with a paint pen. Step back to the doorway and check before you commit.

What marker works on a mirror?

An oil-based paint pen is the pick in the one tutorial we checked, which removes it later with acetone or a blade. It uses chalk marker only for the guidelines and wipes those off with a dry paper towel. We have not tested liquid chalk for the lettering itself, so treat it as an untested alternative and try it on a spare piece of glass first. Marker detail and cleanup are covered on the seating chart mirror page.

How big should the letters be?

Two sign vendors give two rules for reading distance: about 10 feet per inch of letter height as the conservative figure, and 25 feet per inch in favorable conditions. For a welcome mirror that guests see from the doorway, letters of 1 7/8 inches (the 24 by 36 inch mirror with four lines) read from about 19 feet by the conservative rule. Mirror width, not distance, is usually what limits the size.

What mirror size do I need for a welcome sign?

For four short lines with a longest line of 17 characters, the fit table on this page gives 1 1/4 inch letters on an 18 by 24 inch mirror, 1 7/8 inch letters on 24 by 36, and 2 1/2 inch letters on 30 by 40 (our estimate, plain sans lettering). Pick the smallest mirror whose letter height you like. Larger mirrors also need more layout sheets: 2, 3 and 8 for those three sizes.

Do I need to reverse the text on a mirror sign?

No. You letter on the front of the glass, so the words read the normal way round. Reversed text only matters if you letter on the back of clear glass, such as a window or a framed pane. If you ever plan that, hold your printout up to a window and read it from the other side to see what the viewer will get.

Sources

• www.signs.com/blog/?p=16381 (opens in a new tab) : A commercial sign vendor's article on custom sign letter sizes gives a rule of thumb of about 1 inch of letter height per 10 feet of viewing distance, with an example of text viewed from 150 feet. We use it as the conservative end of a range.
• www.safetysign.com/determine-correct-viewing-distances (opens in a new tab) : A sign vendor citing ANSI Z535 uses 25 feet of viewing distance per inch of text height in favorable conditions, and notes OSHA sets no sign text size rule. We use it as the favorable end of the range. The seating chart mirror page uses the same two figures.
• thehappyevercrafter.com/blog/how-to-wedding-seating-chart-on-a-mirror (opens in a new tab) : A DIY mirror tutorial advises printing the layout at 100 percent scale to match the mirror, tapes the printed sheets beside the mirror, transfers marks to the glass with a ruler and chalk marker guidelines, letters with oil-based paint pens, wipes the chalk off with a dry paper towel, and removes the paint later with acetone or a blade.

Updated November 5, 2026 by bigdaydesk editorial

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