House Number Size Guide
Why number width matters
Two numbers with the same height can have very different widths. The font, digit shape and spacing determine how much wall space the address needs. Before ordering, measure the available width and check the width table for the exact font you want.
Standard house number heights
| Height | Typical use | Viewing distance |
|---|---|---|
| 4 inch | Front door, mailbox | 10-15 feet |
| 6 inch | Garage, porch, driveway | 20-30 feet |
| 8 inch | Yard sign, long driveway | 40-60 feet |
| 12 inch | Roadside, rural address | 80+ feet |
Local codes may require a minimum height. Check with your city or homeowners association.
How to measure your space
- Measure the width and height of the mounting area.
- Leave at least 2-4 inches of margin on each side.
- Check the width of the full address in the chosen font.
- Make sure the numbers are visible from the approach direction.
- For a backboard, add about 2 inches on each side.
Font and spacing
A wide font with generous spacing needs more wall space than a narrow font. If the address is long, choose a narrower font, stack the digits vertically or use a one-unit panel. The table below shows the width for each digit at common heights and fonts; use it to calculate the total width.
Frequently asked questions
- What size number should I use? 4-6 inch for a door or mailbox; 8-12 inch for a driveway or roadside.
- How do I calculate the total width? Add the width of each digit and the spacing between them, then add the margins.
- Can I mix heights? Yes, but keep the digits consistent within one address.
- Do I need a backboard? It helps with alignment and contrast, especially for individual numbers.
Browse house numbers, 3D metal house numbers and address plaques. For placement, read the house numbers buying guide.
Number width chart
Please Find Numbers Width In The Table Below Based On Number Size And Font:
|
6 Inch Height |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
123A (Inch) |
4 |
2.6 |
4.1 |
4 |
4.2 |
4.1 |
4 |
4.3 |
4 |
4 |
|
234B (Inch) |
3.6 |
2.3 |
3.6 |
3.8 |
4.1 |
3.6 |
3.7 |
3.8 |
3.8 |
3.7 |
|
345C (Inch) |
3.8 |
3.4 |
3.9 |
3.8 |
3.9 |
3.8 |
3.8 |
3.9 |
3.7 |
3.8 |
|
456D (Inch) |
4.8 |
2.1 |
3.5 |
3.2 |
4.1 |
3.3 |
4 |
3.6 |
4 |
4.1 |
|
567E (Inch) |
6.1 |
1.8 |
4.3 |
4.4 |
4.7 |
4.3 |
4.3 |
4.4 |
4.2 |
4.3 |
|
678F (Inch) |
3.8 |
2.6 |
4 |
3.9 |
4.3 |
4 |
3.9 |
4 |
3.8 |
3.9 |
|
8 Inch Height |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
123A (Inch) |
5.4 |
3.5 |
5.5 |
5.4 |
5.6 |
5.5 |
5.4 |
5.8 |
5.4 |
5.4 |
|
234B (Inch) |
4.8 |
3.1 |
4.8 |
5 |
5.4 |
4.9 |
5 |
5.1 |
5 |
4.9 |
|
345C (Inch) |
5.1 |
4.5 |
5.3 |
5.1 |
5.2 |
5.1 |
5 |
5.2 |
5 |
5 |
|
456D (Inch) |
6.4 |
2.9 |
4.7 |
4.3 |
5.4 |
4.3 |
5.4 |
4.7 |
5.4 |
5.5 |
|
567E (Inch) |
8.1 |
2.3 |
5.8 |
5.9 |
6.2 |
5.7 |
5.8 |
5.8 |
5.6 |
5.8 |
|
678F (Inch) |
5.1 |
3.5 |
5.3 |
5.2 |
5.7 |
5.4 |
5.2 |
5.3 |
5.1 |
5.2 |
|
10 Inch Height |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
123A (Inch) |
6.7 |
4.4 |
6.8 |
6.7 |
7 |
6.8 |
6.7 |
7.2 |
6.7 |
6.7 |
|
234B (Inch) |
6 |
3.9 |
6 |
6.3 |
6.8 |
6.1 |
6.2 |
6.4 |
6.3 |
6.2 |
|
345C (Inch) |
6.4 |
5.7 |
6.6 |
6.4 |
6.6 |
6.4 |
6.3 |
6.5 |
6.2 |
6.3 |
|
456D (Inch) |
8 |
3.6 |
5.8 |
5.4 |
6.8 |
5.4 |
6.7 |
5.9 |
6.7 |
6.9 |
|
567E (Inch) |
10.1 |
2.9 |
7.2 |
7.4 |
7.8 |
7.1 |
7.2 |
7.3 |
7 |
7.2 |
|
678F (Inch) |
6.3 |
4.4 |
6.7 |
6.5 |
7.1 |
6.7 |
6.5 |
6.6 |
6.4 |
6.5 |
|
12 Inch Height |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
123A (Inch) |
8.1 |
5.2 |
8.2 |
8 |
8.4 |
8.2 |
8 |
8.6 |
8.1 |
8.1 |
|
234B (Inch) |
7.2 |
4.6 |
7.3 |
7.5 |
8.1 |
7.3 |
7.4 |
7.6 |
7.6 |
7.4 |
|
345C (Inch) |
7.6 |
6.8 |
7.9 |
7.6 |
7.9 |
7.7 |
7.5 |
7.8 |
7.5 |
7.5 |
|
456D (Inch) |
9.6 |
4.3 |
7 |
6.4 |
8.1 |
6.5 |
8.1 |
7.1 |
8 |
8.3 |
|
567E (Inch) |
12.1 |
3.5 |
8.6 |
8.9 |
9.3 |
8.5 |
8.7 |
8.7 |
8.4 |
8.7 |
|
678F (Inch) |
7.6 |
5.2 |
8 |
7.8 |
8.6 |
8 |
7.8 |
8 |
7.7 |
7.8 |
|
16 Inch Height |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
123A (Inch) |
10.8 |
7 |
10.9 |
10.7 |
11.2 |
10.9 |
10.7 |
11.5 |
10.8 |
10.8 |
|
234B (Inch) |
9.6 |
6.2 |
9.7 |
10 |
10.8 |
9.7 |
9.9 |
10.2 |
10.1 |
9.9 |
|
345C (Inch) |
10.2 |
9.1 |
10.5 |
10.2 |
10.5 |
10.2 |
10.1 |
10.4 |
9.9 |
10.1 |
|
456D (Inch) |
12.8 |
5.7 |
9.3 |
8.6 |
10.8 |
8.7 |
10.8 |
9.5 |
10.7 |
11 |
|
567E (Inch) |
16.2 |
4.7 |
11.5 |
11.8 |
12.4 |
11.3 |
11.6 |
11.7 |
11.3 |
11.5 |
|
678F (Inch) |
10.2 |
7 |
10.7 |
10.4 |
11.4 |
10.7 |
10.4 |
10.6 |
10.3 |
10.4 |
|
20 Inch Height |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
123A (Inch) |
13.5 |
8.7 |
13.7 |
13.4 |
14.1 |
13.6 |
13.4 |
14.4 |
13.5 |
13.5 |
|
234B (Inch) |
12 |
7.7 |
12.1 |
12.5 |
13.5 |
12.1 |
12.4 |
12.7 |
12.6 |
12.4 |
|
345C (Inch) |
12.7 |
11.3 |
13.1 |
12.7 |
13.1 |
12.8 |
12.6 |
12.9 |
12.4 |
12.5 |
|
456D (Inch) |
16.1 |
7.1 |
11.7 |
10.7 |
13.5 |
10.9 |
13.4 |
11.9 |
13.4 |
13.8 |
|
567E (Inch) |
20.2 |
5.8 |
14.4 |
14.8 |
15.5 |
14.2 |
14.5 |
14.6 |
14.1 |
14.4 |
|
678F (Inch) |
12.7 |
8.7 |
13.4 |
13 |
14.3 |
13.4 |
13 |
13.3 |
12.8 |
13 |