What Is Signage? Types, Materials, and Rules Explained

Signage is any visual display that communicates information to people in a physical space. That
covers the lit letters on a storefront, the braille plate beside a restroom door, the wrap on a
service van, and the yard sign staked in a lawn. If it uses graphics or text to identify, direct,
inform, or persuade someone in the built environment, it is signage.

The word gets used loosely, so it is worth being precise. A sign is one object. Signage is the
whole system of signs working together: the storefront sign that gets someone to the right building,
the wayfinding signs that get them to the right door, and the interior signs that tell them where to
check in. Most businesses buy signs one at a time. The ones that get the most out of them plan the
system.

What does signage actually do for a business?

Signage does five distinct jobs, and naming them is the fastest way to work out what you actually
need.

Identification. Telling people who you are and that you are here. Storefront signs, monument
signs, and building letters.

Wayfinding. Moving people through a space. Directional signs, floor numbers, room plates, and
parking signs.

Information. Communicating specifics. Hours, menus, pricing, safety procedures, capacity limits.

Persuasion. Changing behavior. Window graphics, point of purchase displays, promotional banners,
vehicle wraps.

Compliance. Signs the law requires, including ADA room identification, exit and egress marking,
and occupancy notices.

A single storefront sign can do identification and a little persuasion. It cannot do wayfinding
inside your building, and it will not satisfy an ADA inspection. That is why signage is planned as a
system.

How much do signs actually increase sales?

The strongest published research on the sales impact of on premise signs comes from a University of
San Diego study published by The Signage Foundation. Researchers examined 162 fast food locations in
Southern California alongside annual sales and demographic data.

Citation capsule. One additional on premise sign was associated with a 4.75 percent average
annual sales increase, an impact greater than that of a larger building, longer operating hours, or
longevity at the location. The same research found that sign type mattered: a 144 square foot pole
sign correlated with a 15.6 percent increase in average transaction size, roughly 78 cents on a
5 dollar ticket, a 225 square foot monument sign with 9.3 percent, a 6 square foot directory sign
with 2.5 percent, and a 36 square foot building sign with 1.3 percent. Note that these
measure transaction value, not the number of transactions. The study found sign type had no
statistically significant effect on transaction counts. Separately, across roughly 100 Pier 1 Imports locations and seven years
of sales data, adding a new building, pole, or freestanding multi tenant sign was found to add
5 to 15 percent to a site’s sales revenue.
Source: The Signage Foundation / University of San Diego School of Business Administration,
The Economic Value of On-Premise Signage, 1997.

Two honest caveats. That study is from 1997, and retail has changed a great deal since. And these are
correlations drawn from observational sales data, not a controlled experiment. Use them to understand
that signage is a real commercial variable rather than as a forecast for your own location.

A 2014 study by Charles R. Taylor of Villanova University, surveying 333 on premise sign users,
found that 58 percent would lose sales if regulations prevented them lighting their sign, and
that those reporting a loss estimated it at 21 percent on average
(Illuminated vs. Non-Illuminated Signage).

A 2012 follow up wave of the BrandSpark / Better Homes and Gardens American Shopper Study, a sample of
784 US shoppers, found 41.5 percent made quality assumptions about a business based on clear,
attractive signage
(BrandSpark / BHG shopper study findings).
That same wave put the drive past and fail to find figure at 60.8 percent, higher than the 2011
number cited below.

One disclosure that matters. The 1997 study, the 2014 illumination study, the BrandSpark shopper
figures above and the University of Cincinnati work below all trace to one place. The Signage
Foundation was renamed the Sign Research Foundation, it is aligned with the International Sign
Association, the sign industry’s trade body, and the BrandSpark and Cincinnati findings were presented
at that foundation’s own research conference. This is the best available research
on signage economics, and it is funded by the industry that sells signage. Read it accordingly.

What does unclear signage cost a business?

The failure case is measurable too. University of Cincinnati researchers analyzing a survey of more
than 100,000 North American households found that nearly 50 percent of American consumers report
having driven past and failed to find a business because its signage was too small or unclear. Among
women aged 18 to 24, that figure was 64 percent.
Source: University of Cincinnati Lindner College of Business, Dr. James J. Kellaris, analysis of the
BrandSpark / Better Homes and Gardens American Shopper Study,
UC news release,
2011.

What are the main types of signage?

Signage divides into five practical families. Most businesses need something from at least two.

Interior and office signs

Signs inside a building: lobby and reception signs, dimensional letters, wayfinding and directional
systems, ADA and braille room plates, wall graphics, and door plates. Interior signage carries most of
the compliance burden, because ADA room identification requirements apply indoors.

Explore indoor signs,
custom office signs,
ADA and braille signage,
directional and wayfinding signs,
acrylic signs,
wall graphics,
environmental graphics,
medical office signage,
classroom and school signs,
warehouse signage,
point of purchase displays, and
foam board signs.

Exterior and yard signs

Signs that work outdoors and have to survive weather: storefront and building signs, yard signs,
lawn letters, real estate signs, and parking and property signs. On the Gulf Coast, material choice
matters more than it does in a dry climate, because heat, humidity, and sun exposure all degrade
substrates and inks.

Order online: yard signs and campaign signs can be priced and ordered directly from our store,
yard signs and campaign signs, in stock sizes from 12 by 9 inches up to 48 by 48 inches, from one sign up. For anything outside that range, call us.

Explore yard signs,
real estate signs,
commercial real estate signs,
retail signs,
property management signs,
parking and towing signs,
graduation yard signs, and
birthday yard letters.

Vehicle wraps and graphics

Graphics applied to vehicles: full and partial wraps, fleet programs, box truck and trailer graphics,
decals, and magnets. A wrapped vehicle is the one sign in the list that goes looking for an audience
instead of waiting for one.

Explore vehicle wraps,
fleet wraps and graphics,
truck wraps,
box truck wraps,
trailer wraps,
commercial car wraps,
food truck wraps,
car decals and magnets, and
perforated window decals.

Banners and event signage

Temporary and portable signage: vinyl and mesh banners, retractable stands, trade show displays,
feather flags, and event graphics. These are built to be installed, taken down, and reused.

Explore custom banners,
event signs,
trade show displays,
feather flags,
golf tournament signs,
fundraiser signs, and
custom wrapping paper.

Specialty and print

Everything that is a printed graphic rather than a conventional sign: floor decals, product and
equipment labels, posters, and aluminum or metal panels.

Explore vinyl floor decals,
equipment labels,
posters,
aluminum signs,
graphic design, and our
printing capabilities.

How big do the letters on a sign need to be?

The working benchmark is about 30 feet of legibility distance per inch of letter height. A 3 inch
letter is readable at roughly 90 feet, a 6 inch letter at roughly 180 feet.

That figure comes from federal highway research, where it is used to size static road signs for
drivers at speed.

Citation capsule. The Manual on Uniform Traffic Control Devices criterion for legibility
distance on static signs is estimated at 30 feet per inch of letter height. FHWA research adds
that for drivers with roughly 20/20 vision, legibility distance can be conservatively estimated at
40 feet per inch, while for drivers with 20/40 vision, 20 feet per inch is the reasonable
estimate.
Source: U.S. Federal Highway Administration,
Information as a Source of Distraction, FHWA-HRT-15-027, 2015.

Two things follow from that spread. Design for the 20 feet per inch figure, not the 40, because a
meaningful share of your customers do not have perfect vision. And remember this research measures
drivers reading highway signs, so treat it as a floor for on premise signage rather than a precise
retail standard. A sign a driver must find while changing lanes at 45 miles per hour needs more size
than the numbers alone suggest.

Which signs are legally required, and what are the rules?

Two bodies of rule catch most businesses: federal accessibility law, which applies almost everywhere,
and state or local sign codes, which vary.

ADA signage requirements

The 2010 ADA Standards for Accessible Design specify permanent room identification signage in detail.
These are requirements, not guidelines.

Citation capsule. Tactile characters must be 5/8 inch (16 mm) minimum and 2 inches (51 mm)
maximum in height, measured on the uppercase letter I (§703.2.5). Braille must be contracted
(Grade 2), positioned below the corresponding text and separated 3/8 inch (9.5 mm) minimum
from other tactile characters (§703.3, §703.3.2). Tactile characters must sit 48 inches (1220 mm)
minimum to 60 inches (1525 mm) maximum above the finished floor (§703.4.1). Where a tactile sign
is provided at a door, it goes alongside the door on the latch side, with an 18 by 18 inch clear
floor space centered on the characters (§703.4.2).
Source: U.S. Access Board,
2010 ADA Standards for Accessible Design, Chapter 7.

Visual (non tactile) characters scale with viewing distance under §703.5.5. A sign mounted 40 to 70
inches above the floor needs 5/8 inch characters when read from under 6 feet. Above 70 inches and up
to 120 inches, the minimum is 2 inches for viewing distances under 15 feet. Above 120 inches, it is 3
inches for distances under 21 feet, with 1/8 inch added per additional foot of viewing distance in
each band.

Texas sign rules worth knowing

Texas regulates political signs specifically, and the rules bind whoever prints the sign as well as
whoever places it. Political advertising signs designed to be seen from a road, which excludes bumper stickers, must
carry the notice required by Texas Election Code §259.001, and contracting to print one without that
notice is a Class C misdemeanor. Placing a
sign in a public road right of way is separately prohibited under Transportation Code §393.002, with
a civil penalty of 500 to 1,000 dollars per violation and a separate penalty for each day it
continues under §393.007.

We cover this in full in our guide to
political yard sign rules in Texas
and the 2026 Texas election year playbook.

This is general information, not legal advice. Sign law varies by jurisdiction and changes, so
confirm current requirements with your city and, for anything consequential, with counsel.

Beyond state law, check your city ordinance and, if the property is in a subdivision, the owners
association rules. Municipal sign codes commonly regulate height, area, illumination, and setback,
and they differ from one jurisdiction to the next.

What are signs made from, and how are they printed?

Substrate and print method together decide where a sign can be installed, how long it lasts, and what
it costs.

Common substrates include corrugated plastic (coroplast) for short term outdoor use, aluminum and
aluminum composite for permanent exterior panels, acrylic for interior dimensional and lobby work,
vinyl for banners and wraps, MDO plywood for larger exterior panels, and foam board for interior
displays.

The printing method matters as much as the material, and it is the part most buyers never ask about.
At our shop on Chimney Rock Road we run three complementary platforms:

• A Digitech Retrojet flatbed prints up to 6 by 10 foot board stock, directly onto plastic,
  aluminum, acrylic, MDO plywood, and glass. Print speed is variable, so a job can be run fast for
  volume or slowed down for a crisper finish.
• A Digitech TrueFire flatbed is fully sheet fed for high speed coroplast and poster stock. It
  lets us run short run, mix and match work and produce multi part point of purchase kits as complete
  sets rather than long individual runs, which shortens lead times.
• HP Latex printers handle decals, banners, and vehicle wraps. The inks are water based and
  odorless, need no special ventilation, contain no HAPs, and are nickel free.
  They are UL ECOLOGO and UL GREENGUARD GOLD certified. That certification is the practical reason
  latex is used for healthcare, school, and occupied office interiors where solvent inks are not an
  option.

That range is also why order size is flexible. We have produced everything from a single plot map to
5,000 corrugated plastic signs for one job.

What drives the cost of a sign?

Signage spans a wide range, so there is no useful average price for “a sign.” What is useful is
knowing which variables move a quote, and, for the products you can buy online, seeing the live number
yourself.

For coroplast yard signs and campaign signs, current pricing is on the product page for every stock
size and quantity, so you never have to rely on a figure quoted in an article. Wire stakes for lawn
installation and grommets for fence mounting are separate line items.

You can price either product directly, in the stock sizes offered, without talking to anyone:
order yard signs or order campaign signs.

Beyond that product line, price is driven by variables rather than a list. These are the levers that
actually move a quote.

Size and quantity. Larger signs use more material and more machine time. Quantity works the other
way: setup cost is fixed, so unit price falls sharply as the run gets longer.

Substrate. Coroplast is the cheapest common outdoor material. Aluminum composite, acrylic, and
fabricated dimensional letters cost considerably more and last considerably longer.

Single or double sided. Double siding roughly doubles material and print time. For a yard sign
read from one direction only, it is a waste, and for one at a road junction it is essential.

Illumination. Lighting adds fabrication, electrical work, and often a permit. It also has a
measurable commercial effect: in the 2014 Sign Research Foundation survey, more than half of on
premise sign users said they would lose sales without the ability to light their sign, with that group
estimating the loss at 21 percent.

Installation and permitting. A yard sign is pushed into the ground. A monument or building sign
may need engineering, a permit, and a crew. On permanent exterior signage, installation and permitting
can rival fabrication cost.

Design. Print ready artwork costs nothing extra. Artwork that needs to be created, redrawn, or
color matched is design time.

The honest way to budget is to define the job first: how far away it must be readable, how long it
must last, whether it must be lit, and whether it is permanent. Those four answers narrow the material
and method, and the price follows from there.

Frequently Asked Questions

What is the difference between a sign and signage?

A sign is a single object. Signage is the collective system of signs and how they work together. A
business has one storefront sign, but its signage includes that sign plus wayfinding, interior room
identification, vehicle graphics, and any temporary event or promotional signs.

What are the five main types of signage?

Interior and office signs, exterior and yard signs, vehicle wraps and graphics, banners and event
signage, and specialty print such as floor decals, labels, and posters. Most businesses need at least
two of these categories.

How big should the letters on my sign be?

Use roughly 30 feet of legibility distance per inch of letter height as the starting benchmark, so a
3 inch letter is readable at about 90 feet. Because federal research shows drivers with 20/40 vision
get closer to 20 feet per inch, design toward the more conservative figure when the sign must be read
from a road.

Are ADA signs required in every business?

Permanent room identification signage in places of public accommodation and commercial facilities must
meet the 2010 ADA Standards, which set tactile character height at 5/8 inch to 2 inches, require
contracted Grade 2 Braille below the text, and require mounting 48 to 60 inches above the floor. Not
every sign in a building is regulated, but permanent room and space identification generally is.

How long do outdoor signs last in Houston?

It depends on the substrate and on sun and wind exposure, so we will not quote you a number we
cannot stand behind. Coroplast is built for short term outdoor use, which is why it suits campaigns,
events, and real estate listings. Aluminum and aluminum composite panels are the permanent tier and
are made to stay up for years. Gulf Coast sun, humidity, and summer storms are harder on every
outdoor material than a dry inland climate, so if a sign has to hold up through a Houston summer,
tell us the deployment length before you order and we will point you at the right tier.

Do I need a permit for a business sign?

Often yes for permanent exterior signage, and it depends on your municipality. City sign codes
commonly regulate height, area, illumination, and setback, and a property inside a subdivision may
also be subject to owners association rules. Temporary signs such as yard signs and banners are
usually treated differently from permanent installations.

Does signage actually increase sales?

The published research says it is associated with measurable increases, with the caveat that the
strongest dataset is now old. A University of San Diego study published by The Signage Foundation
found one additional on premise sign was associated with a 4.75 percent average annual sales increase
across 162 fast food locations, and 5 to 15 percent added revenue across roughly 100 Pier 1 Imports
locations. Those figures are from 1997 and are correlational, so treat them as evidence that signage
is a real commercial variable rather than as a prediction for a specific site.

Getting your signage right

Signage rewards planning more than it rewards spending. Decide what job each sign has to do, how far
away it has to work, how long it has to last, and which rules apply to it. Those four answers settle
most of the material and cost questions before you ever request a quote.

Houston Sign Company has been designing, producing, and installing signage in Houston since 1946,
which is 80 years of working out what survives a Gulf Coast summer. We
work from our shop on Chimney Rock Road, between The Galleria and the City of Bellaire, and we handle
design, fabrication, and installation in house.

If you need yard signs or campaign signs, you can skip the quote entirely and price them yourself:
order yard signs or order campaign signs, in any stock size, from one sign
up.

For anything else, call 713-662-3123 or request a quote and
tell us what the sign has to do. We will tell you what it should be made of.

Houston Sign Company has served Houston businesses since 1946, producing interior, exterior, vehicle,
and event signage from its Chimney Rock Road facility.