Large multi-story building under construction with some windows installed and scaffolding on the right side.

Spec-Block™ is available nationally in a full array of fittings and sizes.

Spec-Block™ Your Best Option

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Engineered Performance

Stop juggling extra layers; Spec-Block™ integrates structure and insulation into a single unit, cutting down on the specialized trades needed for your build.

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Code-Ready Simplicity

Easily exceed modern thermal and energy requirements with straightforward, time-tested masonry methods that keep your project on schedule and under budget.

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Ultimate Protection

From high-wind zones to fire-rated partitions, Spec-Block™ is an impervious, low-maintenance solution designed to withstand the harshest environments for decades.

Get predictable quality and consistency for your gray block requirements nationwide. Spec-Block™ is a gray concrete masonry unit available in standard dimensions and a variety of fittings.

Request Samples

Two brick samples labeled Soft Blend and Claret Blend showing color variations in rectangular bricks.

The Concrete Products Group (CPG) is happy to provide qualified architects and designers product samples to meet design requirements.

Please provide your name and email address and we will contact you for shipping instructions.

The Concrete Products Group LLC (CPG) consists of regional market leaders in the concrete products industry. The CPG is organized to provide consistent, top-quality products to regional and national customers.