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High Structural Strength: Engineered from high-density, dense concrete for load-bearing reliability in general construction.
Deep Frog Design: Features an indented top face ("frog") that holds mortar to increase joint bonding strength and overall wall stability.
Excellent Frost & Moisture Resistance: Fully compliant for use above and below the Damp Proof Course (DPC) in freeze-thaw risk conditions.
Smooth Standard Finish: Offers consistent dimensions and flat, smooth faces for clean alignment and uniform mortar lines.
Versatile Construction Use: Suitable for internal load-bearing walls, foundations, partition walls, and background masonry for rendering.
Frequently Asked Questions (FAQ)
Should the frog face up or down when laying?
Standard bricklaying practice requires common bricks to be laid frog side up. Filling the entire frog with mortar ensures the finished wall achieves its full structural strength, load-bearing capacity, and sound insulation properties.
Can these concrete commons be left exposed externally?
While concrete commons can be used externally, they are primarily structural bricks. They are generally specified for background work, foundations, and walls that will be rendered, plastered, or face-clad. For visible decorative facades, a dedicated facing brick is usually recommended.
How many concrete common bricks are needed per square metre?
Using standard 10mm mortar joints, you will need approximately 60 bricks per square metre for a single-skin wall.
The Concrete Common Brick Smooth With Frog is a versatile, high-strength structural brick designed for general-purpose masonry applications in both domestic and commercial projects. Manufactured from high-density aggregates, these commons are built to offer consistent performance, structural integrity, and long-term durability.
Featuring a traditional frog recess on the top bed, the brick allows mortar to fill the cavity during laying, creating a robust key that significantly improves shear strength across the wall. The smooth, flat outer surfaces make them ideal for internal walling, acoustic compartment walls, infill masonry, and backing structures intended for plaster or render.
Because concrete bricks feature excellent resistance to water absorption and freeze-thaw cycles, they are equally suited for below-ground applications, including foundation footings, manholes, and walling up to DPC level.
Code:
Technical Specifications Table
Feature
Specification
Product Type
Concrete Common Brick
Face Finish
Smooth
Bed Detail
Frogged (Single Recess)
Dimensions (L x W x H)
215mm x 102.5mm x 65mm
Dry Density
~1800 - 2000 kg/m³
Compressive Strength
Minimum 22.5 N/mm²
DPC Suitability
Suitable for above and below DPC
Compliance
BS EN 771-3 (Aggregate Concrete Masonry Units)
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