# How to measure the minimum height of font characters as a sign builder or manufacturer
This document is only intended for sign builders and manufacturers. If you are a drop shipper, refer to this article. Q: When specifying the height of the smallest letter, shall we exclude symbols and characters? Symbols like _ (underline) or. (period) usually takes the minimum height in all typefaces. A: Yes, symbols and other similar characters should be excluded. Q: When specifying the minimum height of the smallest letter, shall we just measure every letter, regardless of whether it's an upper or lower case? A: Yes if you can. Usually, it would be the lowercase letter but some fonts will have only uppercase letters, so it should be adjusted accordingly. Q: When it says "smallest". does it mean shortest, most narrow or takes the least amount of space as a whole? A: It should be the shortest; we’re only looking at the height for this measurement.
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- Category: Pricing and Sizing Models
- Last updated: 2025-02-14
## Article
This document is only intended for sign builders and manufacturers. If you are a drop shipper, refer to this article.
**Q: When specifying the height of the smallest letter, shall we exclude symbols and characters? Symbols like \_ (underline) or . (period) usually takes the minimum height in all typefaces.**
A: Yes, symbols and other similar characters should be excluded.
**Q: When specifying the minimum height of the smallest letter, shall we just measure every letter, regardless of whether it's an upper or lower case?**
A: Yes if you can. Usually, it would be the lowercase letter but some fonts will have only uppercase letters, so it should be adjusted accordingly.
**Q: When it says "smallest". does it mean shortest, most narrow or takes the least amount of space as a whole?**
A: It should be the shortest; we’re only looking at the height for this measurement.
## Video Explainer
To provide a more comprehensive breakdown, please checkout this video.