Though known primarily for the extensive range of our exterior signage products, CSM knows that way-finding and quality graphics imaging does not stop at the front door, but must continue through to interior applications as well.

So in response to strong customer demand, Charleston Sign Manufacturing is pleased to announce the addition of a number of interior signage products to our offerings. Now Charleston Sign Manufacturing will take you all the way through whatever architectural signage project that you are involved with!

Standard ADA Signage

If you can design it, CSM can build it! As with all CSM products, we utilize state-of-the-art science and technology to create the most unique signage with the highest quality. Further our industry experience means that we have literally seen it all! So, please contact us directly with all of your ADA signage questions and concerns.

Choose from a wide range of substrate and profile materials to fit your project needs. From engraving materials to acrylics and polycarbonates, CSM has the ability to create all of your ADA signage requirements.

Unframed Custom shape signs

The world of interior signage is not limited to squares! At CSM our diverse fabrication capabilities can create non-traditionally shaped signage to match any design aesthetic.

Simply send us an image of the sign you are trying to produce and we will use our extensive resources to fabricate an identical sign.


CSM’s line of stainless steel standouts provide you with a variety of signage mounting options, so that you can dress up any sign or display. From decorative caps and buttons to cable mounting systems, the system flexibility is yours to take advantage of.

The CSM Standoff system is easy to install and provides a modern look to any interior sign.

Digital Imaging

Utilizing high-resolution digital color imaging and enhancement technologies, CSM is able to fabricate interior wall panels that are as distinct and individual as your imagination will allow. Panel images can be as small as a 4” x 4” tile, to a full-sized 48” x 96” sheet or even larger depending on the substrate being specified.

So, for graphics that looks as real as the “real thing” consider CSM’s digital images and prints.

Standard ADA
Standard ADA
Digital Imaging

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