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Split Face CMU

Extremely durable, fire and mold resistant, and energy efficient due to high thermal mass. Our most popular architectural finish.

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Split Face CMU

Jandris Split Face CMU’s are extremely durable, fire and mold resistant, and energy efficient due to high thermal mass. The raw materials used to produce most colors of our Split Face Blocks are local.

Jandris Split Face Blocks are fractured using a splitter exposing natural aggregates and creating a natural “rock-like” surface. They can be used for maintenance-free interior and/or exterior applications.

Variations of Split Face CMU

View Color Selection

Shapes & Sizes

Split Face Blocks are available in various shapes and sizes, including half units, half high units, bond beams and lintels (where reinforcing is needed), corners (one face and one end split), and custom shapes upon request.

Nominal Size Actual Size (WxHxL) Weight
4x8x16 3⅝×7⅝×15⅝ 26 lb
6x8x16 5⅝×7⅝×15⅝ 33 lb
8x8x16 7⅝×7⅝×15⅝ 38 lb
10x8x16 9⅝×7⅝×15⅝ 43 lb
12x8x16 11⅝×7⅝×15⅝ 53 lb

Available Options

Insulation Inserts

Hi-R & Hi-R-H insulated units for energy code compliance and thermal performance. All architectural finishes are available with factory-installed Korfil insulation inserts, delivering tested R-Values up to R-18.

Learn about Insulated CMU

CarbonX Low Carbon Option

All architectural finishes are available with CarbonX technology, which lowers embodied carbon by reducing cement content and increasing CO₂ sequestration — by up to 50%, depending on the product.

Learn about CarbonX

Architectural CMU in the Field

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TD Garden

Boston, MA — Architectural CMU Ground Face CMU
Sports & Entertainment

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Essex North Shore Agricultural & Technical High School

Danvers, MA — Architectural CMU
Education

View Project
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Patriot Place

Foxborough, MA — Victorian
Education Public Safety

View Project

Resources for Designers

Ready to Get Started?

Whether you need product specs, samples, or help choosing the right block — we’re here.