How to Choose the Right Office Sign Size: A Practical Guide

Office signs do much more than display information — they guide visitors, support branding, and influence how people navigate your space. But one of the most important (and often overlooked) decisions when designing a sign is choosing the right size.

From large exterior signage to small nameplates, the ideal dimensions depend on visibility, purpose, and aesthetics. Here's how to make sure you're getting it right.


Common Office Sign Sizes (Refined)

Sign sizes vary depending on location and function. Below are the most widely used sizes across industries:

Type Common Sizes
Exterior Storefront 36" x 48", 48" x 96", custom fascia sizes
Interior Office Signs 4" x 8", 6" x 9", 12" x 18", 18" x 24"
Door Signs 6" x 9", 6" x 12", 8" x 10"
Nameplates 8" x 2", 10" x 2", 11" x 2.5", 12" x 3"

These sizes aren’t random — they're designed to balance visibility with spatial constraints. For example, 6" x 9" is a common ADA-compliant format for door signage, while 4' x 8' is typical for roadside visibility on a storefront.


Factors That Affect Sign Size

1. Viewing Distance

Perhaps the most critical factor is how far the viewer will be from the sign. A widely accepted rule is:

1 inch of letter height per 10 feet of viewing distance1.

So, a sign viewed from 60 feet away should have at least 6-inch-tall letters. This is especially important for outdoor signage or large lobbies.

2. Placement

  • Exterior signs must be large enough to be read from a street or parking lot. Common sizes include 36" x 48" or larger, especially for signs 50–100+ feet from the viewer.
  • Interior signs, like those in hallways or reception areas, are typically read from a few feet away and can be much smaller.

3. Purpose

The message determines the footprint:

  • Nameplates and door IDs can be slim and minimal.
  • Directional signs need space for arrows or multiple lines of text.
  • Branding signs in lobbies or on building exteriors often need to command attention and create impact.

4. Aesthetics

Sign size should fit the space. An undersized sign may go unnoticed; an oversized one can look awkward or cluttered. Good design aligns proportion with surrounding architecture and décor.


Tips for Choosing the Right Size

  • Measure the space before deciding — mockups help.
  • Consider your budget: Larger signs cost more to produce and install.
  • Prioritize readability: Don’t sacrifice clarity for minimalism.
  • Ask a professional: Most sign companies are happy to advise you on ideal sizing and placement.
Don’t be afraid to ask for help — professional sign companies can provide guidance on size and design, according to Fat Bison Workshop.

Final Thoughts

Whether you're selecting a massive outdoor sign or a discreet nameplate, choosing the right size ensures your message is clear, professional, and visually aligned with your environment. By factoring in viewing distance, location, and use case, you’ll land on a sign that works as well as it looks.


Footnotes

  1. Wikipedia – Signage Legibility
  2. U.S. Small Business Administration – Storefront Signage Guidelines
  3. Design Guidelines for Effective Signage – Penn State University