cathedral outdoor readerboard
2-door indoor enclosed corkboard with header
single face illuminated outdoor readerboard
Cathedral outdoor readerboard Front & SIDE VIEW
Single face illuminated outdoor readerboard Front & SIDE VIEW

For those signage applications where information on a wide variety of subject matters is required, the Charleston Manufacturing, LLC exterior directories and readerboards are the perfect option. Available for use in either illuminated or non-illuminated configurations, the Charleston Manufacturing, LLC exterior directories and readerboards are custom made to suit your particular application. Units can be configured as either single or double face, and can be manufactured with a variety of message media from corkboard to changeable sign letters. All units can be either anodized or finished with our standard acrylic polyurethane finish.  

All Charleston Manufacturing, LLC exterior directories are built to stand the toughest outdoor environments. They feature the same durable extrusions you have come to expect with all Charleston Manufacturing, LLC products. In addition, all units feature weather resistant aluminum backing with silicone sealant and requisite ventilation.   A readerboard is a visual display board that conveys information about a wide variety of subjects, including advertising for products or services, travel, news or event information.  

While traditional readerboards often use simple block letters that must be physically manipulated to change the message, many modern versions use LEDs that may be instantaneously updates to reflect changes to the information displayed.

System Features & Design
The beauty of GPP-CI architectural signage systems are their inherent versatility. Utilizing modular components, the systems can be adapted to virtually any signage application ranging from monolithic designs to interior wall-mounted directories. The GPP-CI systems offer design integrity, aesthetic quality and remarkable economy.

GPP-Charleston Industries maintains a complete in-house paint facility. As a result, we are able to offer single source responsibility and a high level of quality control. In addition, our color matching capabilities are without equal. We take pride in providing full color matching services, usually in a week or less.

Our standard paint finish is an acrylic polyurethane, the most recognized coating for quality, brilliance and longevity in architectural signage systems. 6063 T5 aluminum extrusions are mechanically pre-treated, primed and electrostatically painted.

The finish is then baked on in an oven-accelerated air-dry system. The resulting hard, slick surface makes it impact resistant and able to withstand exposure to most solvents and chemicals as well as heavy traffic or abuse. In addition, the finish maintains

its "just painted" look years after exposure to sun, salt, and corrosive industrial environments.

Beyond our standard acrylic paint finish, GPP-CI can also provide anodized, Kynar 500® or other premium coatings as required. Please call us directly with your inquiries.

All posts and frames are manufactured from heavy duty 6063 T5 aluminum extrusions produced to Aluminum Association standards. Standard sign panels are supplied in .063 to .125 aluminum. Acrylic, fiber glass, Lumasite® or polycarbonate panels may also be specified.

There are a number of ways for a sign to effectively convey the proper graphic image. GPP-Charleston Industries employs state of the art graphics equipment and technology. This allows the architect/specifier the freedom to choose from a number of processes for producing a graphic image. Some of the processes used by GPP-CI include:

  • Applied vinyl copy
  • Precision routed copy
  • Push-through copy
  • Frisketed copy
  • Back sprayed copy
  • Routed dimensional letters
  • Digital print


Our graphics capabilities allow us to offer a variety of options such as logo reproduction, corporate identity programs and sitewide uniformity of graphics.

The Series 750, 750 pylons and Series 1200 are designed for either Illuminated or non-illuminated applications. All units and ballasts are UL approved and are available in 120 or 277 volt configurations.

Standard Colors
Medium Bronze
Scarlet Red
Black Anodic
Capri Blue
Brushed Alum.
Federal Green
Dark Bronze
Hospital Blue
Deep Teal
Charcoal Grey
Rich Brown
High Gloss White