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A Brief Guide to Types of Masonry Building Block for Builders and Homeowners

  • Feb 25
  • 1 min read

Hollow Blocks Masonry

Masonry blocks, or Concrete Masonry Units (CMUs), are essential in construction—from homes to large buildings. They come in different types based on structure, shape, and materials, helping you choose the right one for durability, function, and appearance.


Types of Masonry building block

  • Hollow Blocks: Lightweight with cavities (25-50%), easy to handle, and suitable for wiring, plumbing, and reinforced walls.

  • Solid Blocks: Dense and heavy, ideal for load-bearing walls, foundations, and structural stability.


Shapes and Functions

  • Stretcher Blocks: Main wall units.

  • Corner Blocks: Form clean 90° corners.

  • U-Blocks (Lintels): Support beams over openings.

  • Bullnose Blocks: Rounded edges for safety and aesthetics.

  • Jamb Blocks:Fit around windows and doors.


Material Variations

  • AAC Blocks: Lightweight, excellent insulation, fire-resistant.

  • Fly Ash Blocks: Eco-friendly, weather-resistant.

  • Paving Blocks: Durable for driveways and patios.


Segmental Retaining Walls: Allan Block System


Made from high-strength concrete, these interlocking blocks provide a stable, slope-friendly solution without mortar. Features include:


  • Hollow cores for drainage and handling ease.

  • Built-in setbacks for stability.

  • Long-lasting, pest, and rot resistant.

  • Suitable for small garden walls or tall commercial structures reinforced with geogrid.


In short, selecting the right masonry block depends on your project’s needs. Understanding the options ensures durable, functional, and attractive results. Always consult professionals for best outcomes!

 
 
 

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