4″ Half Blocks


About Half Blocks (4x8x4" Glass Block)

4x8x4 glass blocks are a great choice for a more unique design.  They can be used in a mosaic, or by themselves for a timeless design.  The 4-inch glass blocks are durable, are made to be structurally sound, and are lightweight.  In South Florida, it is necessary to use strong durable products that can stand up to our harsher weather conditions.  These glass blocks are perfect for exterior facing installations and are made to last. 

Technical Data & More

When considering glass blocks for your project, it is important to have technical data to provide to your architecture to make the process more simple.  Seves offers a wealth of information on the website, but here are the dimensions, weight, and the number of pieces per box.  For more information, including the shading coefficient, light transmission data, or U-values, check out Seves website for more information.


3-7/8" x 7-3/4" x 3-7/8" in


3.6 lbs.



Get More Information on 4 x 8 x 4" Glass Blocks

Intersecting random wave pattern, provides an attractive appearance and excellent privacy. Smooth exterior surface for easy cleaning.
Random texture built over the Nubio pattern. More privacy but without a fixed geometric design. Cortina (Curtain in Italian) reminds one of a rippled winter scene.
This see-through block provides a dramatic grid effect, undistorted vision and maximum light transmission.

Features of 4″ Half Blocks

The 4x8x4″ Glass Blocks are a part of the Seves Glass Block 4″ Premiere™ Series.

In this collection, the patterns are Nubio, Clarity, and Cortina.

Solar Reflecting

Energy Savings


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Fill out the form to give us some information about your opening and the type of glass block you would like to use on your project.  We will quote your project or reach out if we need further information.