The Finishing Touch on Your Glass Block Project
Glass blocks give you endless design options, whether it’s partition walls, pet kennels, or eye-catching accent features like desks. With a wide selection of patterns, shapes, and finishes, designers can bring almost any idea to life. For a glass block accent wall and other projects, finishing touches make all the difference. Glass block caps add a stylish, functional element, keeping the edges of your walls as polished and appealing as the rest of the design.

Building professionals recognize that specific finishes are the defining elements of a high-quality installation. Just as flooring, window frames, and lighting define a building’s character, glass block finishing blocks provide the necessary refinement. Traditionally, a glass block finishing block features a rounded bullnose surface to create a clean look at the top or end of a wall. Before specialized endblocks were common, designers often used ceramic tiles to cap glass block accent walls. While some still prefer ceramic caps to match specific motifs, the modern variety of endblocks allows for a seamless, fully integrated glass block wall design.
Whether installing glass block windows or glass brick partition walls, the right finish provides the final touch. Glass caps are innovative accessories designed to fit perfectly over straight, curved, or angled glass blocks (45 or 90 degrees). A wide range of glass block options is available to ensure every project reaches a professional conclusion.
Glass Block Options:
Endblock
Endblocks are specifically engineered with a finished aesthetic in mind. These blocks provide a cohesive, high-end look to structures such as shower enclosures or partition walls. These glass block finishes are the ideal choice for completing free-standing accent walls. Because glass block is now available in hundreds of shapes, colors, and styles, there is a variety of endblock shapes to meet the specific requirements of any architectural design.
Linear Endblock
Linear endblocks feature a rounded, finished edge that is perfectly suited for jamb or top-of-wall conditions. These specialized blocks allow you to finish glass block wall designs that prioritize natural light while maintaining the elegance of a professional, rounded edge.

Curved Endblock
A curved endblock provides a soft, rounded shape that creates a continuous finished edge when paired with linear endblocks. Similar to the traditional Pittsburgh Corning Encurve series, these blocks utilize soft edges to smooth out the transition points of a project. Partition walls built with curved endblocks are excellent for maintaining privacy while allowing light to flow between spaces. These end pieces are precision-fitted for highly customized glass block installations.
Corner Endblock
The cut corner block is a contemporary option featuring a 90-degree angle to maintain the visual continuity of a glass block surface. This corner endblock is the best solution for glass block walls with right-angled floor plans. These are available in "Sharp" or "Radius" designs; the 90-degree Radius block features a rounded face, while the Sharp design mimics the crisp edge of a standard wall.

Glass Caps
Glass caps are small glass tiles applied to the tops and sides of glass blocks to achieve a unified, all-glass appearance. These caps are used on the exposed edges of shower stalls and partition walls. They can be fabricated in various shapes and a wide spectrum of colors to complement any interior design. Known for their flexibility and moisture resistance, these solid surface caps (often available in marble or granite textures) are a staple for glass block shower wall designs.
Framing
When creating glass block windows, various options are available for framing. Prefabricated windows may already come in a frame of some kind to be seamlessly installed into new construction. Other times, glass block is used to fill in an existing window. There may already be a preexisting framework in the structure to place each block in to build a window on site. According to doityourself.com, common window framing options include wood, aluminum, and vinyl.
- Wood: Wooden window frames are considered the most classic style, but require the most maintenance throughout their lifetime. Many contractors know that installing a glass block window in a wooden frame can be difficult since the mortar does not adhere to the wood easily. If not installed properly by a glass block professional, the wooden frame can make the window unstable, leaky, or even drafty. With an endless variety of wood and stain colors available, they are highly customizable and versatile.
- Aluminum: Aluminum window frames are lightweight, durable, and robust. They do not absorb water, making them resistant to rust and rot. Standard aluminum window frames work well in warm climate areas. These frames are also traditionally less expensive than wood, but more expensive than vinyl.
- Vinyl: Low maintenance and durable, vinyl window frames are available in a variety of sizes and styles. Typically, glass block windows framed by vinyl are a popular choice for bathroom windows, kitchen glass block windows, new construction garages, and commercial spaces. Due to the integral nailing fins, installing these windows is a breeze in new construction or other additions.
Glass Block Options From GBA Architectural Products + Services
GBA Architectural Products + Services represents many of the world’s most important architectural glass block manufacturers. We are suppliers of structural glass, glass block, and LightWise glass block systems for hurricane, fire, blast, and even tornado resistance. In addition, GBA also furnishes and installs Composite Concrete Vault Lights, Structural Glass Floor Systems, Glass Block Floor Panels, and Cast Iron Pavement Lights.
Our dedicated installation crew of glass block professionals will prefabricate your design and seamlessly install our products to create dramatic design elements into your project. We have been installing glass block and walkable glass floor systems for over 40 years all across America. The professionals at GBA are prepared to collaborate with restoring these essential historical features and can duplicate original designs with the best, most durable, and highly functional vault glass panels.
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Contact GBA Architectural Products + Services for more information about glass architectural products.
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