Concrete Block vs. Cinder Block vs. Cement Block: A Glossary of Terms

Concrete Block vs. Cinder Block vs. Cement Block: A Glossary of Terms

When planning a masonry project, choosing the right building material is just as important as design and craftsmanship. The terms concrete block, split-face block, cinder block, and cement block are often used interchangeably, but they refer to very different materials with unique properties, applications, and advantages. At Jagra Masonry, we specialize in brick and block masonry and know that clarity helps property owners, contractors, and architects make the right decision, no matter whether you are restoring an old Chicago brick two-flat or building a new construction home.

This glossary will explain their differences in simple, clear terms to help you understand which material is best suited for your next project, whether it’s a concrete block retaining wall, a durable concrete block wall, or another masonry structure.

Glossary of Terms

Concrete Block

Definition:
A concrete block is a rectangular masonry unit made from a mixture of cement, aggregates (such as sand or crushed stone), and water. These blocks are manufactured under controlled conditions, ensuring strength and durability.

Key Features:

• Solid or hollow design for versatile applications
• Available in multiple sizes, typically 8 x 8 x 16 inches
• High compressive strength compared to older materials
• Can be reinforced with rebar or filled with grout for added load-bearing capacity

Applications:

• Concrete block retaining wall construction for landscaping or structural reinforcement
• Standard concrete block wall installations for residential, commercial, and industrial buildings
• Foundations, basements, and load-bearing walls

Advantages:

• Long-lasting and resistant to fire, pests, and weather
• Excellent soundproofing and insulation properties
• Compatible with various finishes, such as stucco or veneer brick

Split-Face Block

Definition:
A split-face block is a type of concrete block that has a rough, textured surface resembling natural stone. This texture is created by splitting a molded block into two, exposing its rugged interior surface.

Key Features:

• Decorative and structural in one product
• Produced in different colors and finishes to match architectural styles
• Same size and structural strength as standard concrete blocks

Applications:

• Exterior façades that demand both aesthetics and strength
• Accent walls and landscaping projects
• Durable concrete block wall construction with an added design element

Advantages:

• Provides a natural, rustic appearance without additional cladding
• Cost-effective compared to natural stone
• Strong and durable, suitable for both decorative and load-bearing purposes

Note: If you’re considering a concrete block retaining wall that also serves as a focal point in landscaping, a split-face block provides the perfect balance of beauty and function.

Cinder Block

Definition:
A cinder block is a lightweight masonry block traditionally made from a mix of cement and coal cinders (a byproduct of burning coal). While still available, cinder blocks are largely considered outdated compared to modern concrete block construction.

Key Features:

• Lighter than concrete blocks due to the porous nature of cinders
• Typically hollow, making them easier to handle
• Less dense and less durable than today’s concrete alternatives

Applications:

• Historically used in foundations, walls, and simple structures
• Limited modern use due to lower structural strength

Advantages:

• Lightweight and easier to transport
• Less expensive historically, though not widely recommended today

Limitations:

• Not ideal for heavy-duty projects like a concrete block retaining wall
• Susceptible to moisture penetration and cracking

Note: While many people still use the term cinder block casually, most modern blocks on the market are actually concrete blocks.

Cement Block

Definition:
The term cement block is often misunderstood. Technically, there is no such thing as a “cement block” because cement itself is just one ingredient in concrete. When people say cement block, they usually mean concrete block.

Key Features:

• Refers to the same material and properties as a concrete block
• Can be solid, hollow, or split-face depending on design

Applications:

• Same as concrete block wall construction, foundations, or landscaping

Note: Always remember that cement is the binder, and concrete is the finished material. If you’re talking about masonry units, the correct term is concrete block, not cement block.

Comparing the Three

Feature	Concrete Block	Split-Face Block	Cinder Block
Material	Cement + aggregates + water	Concrete block with decorative split finish	Cement + coal cinders
Strength	High	High	Low to moderate
Weight	Moderate to heavy	Moderate to heavy	Lightweight
Appearance	Smooth or plain	Textured, stone-like	Plain, gray, industrial
Best Use	Load-bearing walls, retaining walls	Decorative + structural walls	Small, non-load bearing projects
Durability	Excellent	Excellent	Fair

Choosing the Right Block for Your Project

• If you need strength and durability for a foundation, concrete block is the best option.
• If your project requires a balance of aesthetic appeal and structural function, a split-face block provides both.
• If you encounter the term cinder block, be cautious, as these are lighter and less durable, and are rarely recommended for modern construction.
• If you hear someone mention cement block, they are almost certainly referring to concrete block.

Why It Matters in Masonry Construction

At Jagra Masonry, we often see confusion between these terms. Understanding the distinctions ensures you choose the right material for your project. Whether you’re planning a concrete block wall for a residential property, a decorative split-face block façade, or a heavy-duty concrete block retaining wall, using the correct terminology and product makes all the difference in quality, longevity, and safety.

Our expert team specializes in all aspects of block and brick masonry. From concrete block retaining wall systems that protect landscapes to split-face block designs that elevate curb appeal, we provide expert craftsmanship that stands the test of time.

Look to Jagra Masonry for Masonry Clarity

Though many people use the terms interchangeably, concrete block, split-face block, and cinder block each carry different meanings. Concrete blocks are the backbone of modern masonry. Split-face blocks combine strength with beauty. Cinder blocks, while part of construction history, are now largely obsolete. And cement blocks? That’s simply a misused term for concrete blocks.

At Jagra Masonry in Chicago, we believe informed choices lead to durable, attractive, and cost-effective results, and our 10-step planning process ensures no stone will be left unturned. If you’re considering a new concrete block wall, an aesthetic split-face block design, or need clarity on the right material, contact our team today for expert guidance and experience.