A directory sign is the single board that lists every tenant in a multi-tenant building and points each visitor toward the right suite, floor, or unit. For a Largo office tower, medical plaza, or retail center, it is the first thing a lost visitor reads and often the only thing standing between them and a wrong turn back out the door. Get the format, the layout, and the compliance details right, and the directory quietly does the work of a front-desk attendant for years.

DVC Signs builds directory signage for commercial and multi-tenant properties across Largo and the wider Tampa Bay area, from interior lobby boards to exterior tenant panels. This guide walks a property owner or manager through the decisions that actually change the result: which format fits, what the ADA requires, how to lay the sign out so people can read it, and which materials hold up in Florida.

What is a directory sign, and when does a Largo property need one?

A directory sign is a consolidated listing that names the businesses or occupants at a single address and shows a visitor where to find each one. A property needs one the moment a single building or site holds more than one tenant and a first-time visitor cannot tell, from the parking lot or the lobby, which door is theirs. That confusion has a cost: 49.7% of consumers report having driven past a business and failed to find it because the signage was too small or unclear, according to research by James Kellaris at the University of Cincinnati published in Signs of the Times.

Directory signs are a core part of wayfinding, the family of signage that directs people where to go. DVC’s wayfinding signage covers interior and exterior directories, and serves office and commercial property as well as multi-tenant residential sites such as condos, apartments, and manufactured housing. In practice, the Largo properties that most often need a directory are:

• Professional office buildings with several suites
• Medical and dental complexes
• Retail plazas and strip centers
• Condo and apartment communities
• Business and industrial parks

Largo is a city of 82,343 residents (U.S. Census Bureau, 2024 American Community Survey) packed with professional and medical offices, so multi-tenant addresses are common and a clear directory is rarely optional.

The main types of directory signs for offices and plazas

Directory signs fall into five common formats, and the right one depends on where visitors first need help and how often your tenant list changes. Here is how they compare:

A lobby board and a dimensional letter treatment often work together: the directory indexes the building while individual suite signs identify each door. Exterior listings usually take the form of a post-and-panel sign or a monument base with changeable tenant strips. For an indoor board that also carries the building’s brand, our guide to lobby signs in Florida covers the finish and material options in more detail.

Are directory signs required to be ADA compliant?

The surprising answer is that a building directory itself is exempt. Under the ADA 2010 Standards, Section 216.1 Exception 1 removes building directories, menus, and seat and row designations from the Section 216 signage scoping rules entirely, so the directory board does not have to carry tactile or braille characters. The U.S. Access Board publishes the full rule in its scoping chapter.

The permanent room and suite identification signs a directory points to are a different story. Section 216.2 requires signs that identify permanent rooms and spaces to meet Section 703.2, which sets out the tactile requirements in the Access Board’s signs chapter: raised characters at least 1/32 inch above the background, uppercase and sans serif, 5/8 inch to 2 inches tall, with contracted Grade 2 braille positioned below the text, and the sign mounted 48 to 60 inches above the finished floor. Directional and informational signs, by contrast, only have to meet the visual-character rules in Section 703.5.

This is where many owners get it backward. They spend on braille for the lobby directory, which is exempt, and skimp on the suite and room signs, which are not. Our custom interior ADA and wayfinding work and our Largo ADA and wayfinding guide treat the directory and the door signs as one connected system so the whole building clears the standard.

How to lay out a directory people can actually read

A directory works only if a visitor can scan it in a few seconds and find their name. Layout, not decoration, decides that, and it matters commercially: 34.5% of consumers say they have judged a business’s quality by its signage, per the same University of Cincinnati research. A readable directory follows a few rules:

• Order tenants logically, either alphabetically or grouped by floor, and keep the same order on every level.
• Size the characters for the real viewing distance. A lobby board read from three feet needs smaller type than an exterior panel read from a moving car.
• Hold strong contrast between the text and its background so the listing reads in low light and bright sun alike.
• Leave empty rows. A directory with no room to grow forces a reprint the first time you add a tenant.

Turnover is the quiet budget killer. A changeable or modular slat directory lets you swap one tenant strip in minutes instead of replacing the whole sign, which is why it is the format we most often recommend for plazas and office parks. For buildings leaning on dimensional suite signage alongside the board, our Largo office signs buyer’s guide breaks down the matching interior pieces.

Materials and durability for Florida directory signs

Material choice splits cleanly between indoor and outdoor directories, and Florida’s climate drives the outdoor decision. An interior lobby board can use acrylic, printed panels, or routed metal with almost any finish, because it never sees weather. An exterior directory faces heat, ultraviolet exposure, and summer humidity year round, so it needs substrates and finishes rated for the outdoors: aluminum panels, UV-stable graphics, and hardware that resists corrosion in the salt-air coastal environment.

DVC produces exterior directories as routed and dimensional pieces rather than cut-corner stock, and the board can be lighted or unlighted depending on whether visitors arrive after dark. Our exterior office and commercial signage covers both freestanding and lighted options. The goal is a directory that still reads cleanly and holds its color after several Florida summers, not one that fades or chalks within a season.

What directory signs cost, and the turnkey process in Largo

Directory signs are priced on their build, not on a flat rate, so the honest answer is that cost depends on the format, size, material, and whether the board is changeable or lighted. The investment pays back in traffic that actually reaches the right door: 76% of consumers say they have entered a store they had never visited based on its signs, and nearly 60% say the absence of a sign deters them from entering at all, according to a FedEx Office survey. The main cost drivers are:

• Interior board versus weather-rated exterior directory
• Overall size and the number of tenant slots
• Changeable or modular hardware versus a fixed printed face
• Lighted versus unlighted construction
• Quantity, if several matching directories go across a campus

DVC manages the project turnkey start to finish: design and layout, production through licensed and insured trade partners, review of the local sign-code approvals your property may require, and mounting. You get one point of contact from the first sketch to the finished board on the wall or at the drive. To see finished work, browse our project gallery, and when you are ready to price a specific building, request a quote with your tenant count and location.

Frequently Asked Questions

Does a building directory sign need braille?
No. Under the ADA 2010 Standards, Section 216.1 Exception 1 exempts building directories from the Section 216 signage rules, so the directory board itself does not require braille or raised characters. The permanent suite and room identification signs the directory points visitors to are the ones that must carry raised, Grade 2 braille characters under Section 216.2.

What is the difference between a directory sign and a wayfinding sign?
A directory is the index: it lists who is in the building and where. Wayfinding is the broader system of directional and identification signs that move a person along the route the directory started them on. The directory is one piece of wayfinding, usually the first piece a visitor reads.

Can we update a directory when a tenant moves out?
Yes, if you choose a changeable or modular format. A slat or insert system lets you replace one tenant strip without touching the rest of the board, which is far cheaper than reprinting a fixed face every time a lease changes.

How many tenants can one directory sign hold?
That depends on the format and the physical size. A compact lobby board might list a dozen suites, while a larger modular or digital directory can scale to many more. Planning a few empty rows for future tenants is always worth the small extra cost.

How long does a directory sign take in Largo?
Timelines vary with the format, the material, and any local sign-code approvals an exterior directory may need. The fastest path is to send your tenant list and address so DVC can scope the build and give you a real schedule rather than a guess.

Directory signage is one of the highest-return signs a multi-tenant property can own, because it works on every visitor, every day, without anyone staffing it. DVC Signs, at 12350 S. Belcher Rd. Suite 14-B in Largo, FL, designs and delivers directory signs for offices, medical buildings, plazas, and communities across Tampa Bay. Call (727) 524-8543 or request a quote to get started.