What Is a Semi-Face Brick and When Should You Use One?

When most people start researching bricks for a build or renovation, they quickly land on two familiar options: face bricks and plaster bricks. But there is a third category that often gets overlooked, and it can be a smart, cost-effective choice depending on your project. That category is the semi-face brick.

If you have seen the term on a quote or a supplier’s catalogue and were not sure what it means, this guide will clear it up. We will explain what a semi-face brick is, how it compares to the alternatives, and when it makes practical sense to use one.

What Is a Semi-Face Brick?

A semi-face brick, also known as an FBA semi-face brick, sits between a full face brick and a standard plaster brick in terms of finish quality. It is manufactured to be left exposed in certain conditions, but it does not carry the same strict performance requirements as an FBX or FBS face brick.

The key distinction is in the finish and the manufacturing standards applied. Full face bricks are kiln-fired to precise tolerances and are designed to perform on any visible surface, interior or exterior, regardless of exposure conditions. Semi-face bricks are also kiln-fired clay products, but the finish may be slightly less uniform and the performance specifications are more relaxed.

Under the SANS 227 classification framework, semi-face bricks fall within the FBA category, which is grade defined by appearance rather than strict performance benchmarks. This means there is no fixed maximum water absorption requirement, and dimensional variation is more acceptable.

For a full breakdown of how FBA compares to FBX and FBS, read our article on FBX vs FBS vs FBA: Which Face Brick Grade Is Right for Your Project?

Semi-Face Brick vs Face Brick vs Plaster Brick

Understanding where a semi-face brick fits requires a quick comparison across all three product types.

The semi-face brick occupies a practical middle ground. It looks better than a plaster brick when left exposed, but it is priced more accessibly than a premium FBX or FBS face brick. That combination makes it worth considering in specific situations.

When Does It Make Sense to Use a Semi-Face Brick?

Internal Exposed Walls

Semi-face bricks work well on interior walls where you want the warmth and texture of exposed brickwork without the full cost of a premium face brick. A feature wall in a living area, a kitchen island surround, or a study accent wall are all situations where a semi-face brick can deliver a great result. Since the wall is not exposed to rain, salt air, or frost, the relaxed absorption limits of an FBA product are not a concern.

If the idea of raw brick indoors appeals to you, our article on Bringing Raw Face Bricks into Luxury South African Interiors is worth reading for design inspiration.

Boundary Walls and Garden Structures

For boundary walls, garden walls, and outbuildings in low-exposure inland areas, semi-face bricks offer an economical way to achieve a finished, plastering-free result. Provided the wall is correctly built with the right mortar and damp proof course, a semi-face brick will hold up well in the Highveld climate.

Mixed-Use Construction

Some builders use a combination of face bricks and semi-face bricks on the same project. Full face bricks go on the primary street-facing facade and high-exposure surfaces, while semi-face bricks are used on side walls, back walls, and enclosed areas. This is a legitimate approach to managing budget without compromising on the key visual surfaces.

Where Semi-Face Bricks Are Not the Right Choice

Semi-face bricks should not be used as a substitute for FBX or FBS face bricks on coastal properties, main external facades, or any application where the wall will be exposed to consistent moisture, driving rain, or high wind. In those conditions, the relaxed performance standards of an FBA product become a liability.

For guidance on matching your brick choice to your specific location and climate, our guide on South African Exposure Zones covers this in detail.

Cost Considerations

One of the primary reasons contractors and homeowners consider semi-face bricks is cost. They are typically more affordable than FBX or FBS face bricks while still offering a finishable, exposed surface. On a large project, the saving per thousand bricks can be meaningful.

That said, cost should never be the only consideration. Using the wrong brick in the wrong place will always cost more in repairs and maintenance than the initial saving was worth. The question to ask is not just “what is cheaper?” but “what is the most cost-effective brick for this specific wall in this specific location?”

You can view the full range of semi-face brick and face brick options available from Dezyno Bricks on our shop page.

FAQ

Is a semi-face brick the same as an FBA brick?

Yes, semi-face bricks are classified under the FBA (Face Brick Appearance) grade in SANS 227. FBA is an appearance-based grade without fixed absorption limits, which is why semi-face bricks suit lower-risk applications.

Can semi-face bricks be left unpainted and unplastered?

Yes, in the right conditions. For internal walls and low-exposure external walls in inland areas, semi-face bricks can be left exposed. They are not suitable for unplastered use in coastal or high-exposure environments.

Are semi-face bricks structurally sound?

Yes. Semi-face bricks are kiln-fired clay products and are structurally capable. The FBA classification relates to surface performance and appearance, not structural integrity.

How do I know if my project qualifies for semi-face bricks instead of full face bricks?

Consider the location (inland vs coastal), the level of weather exposure, and whether the wall is interior or exterior. When in doubt, consult your contractor or contact the Dezyno Bricks team for guidance.

Does Dezyno Bricks stock semi-face bricks?

Yes. Dezyno Bricks stocks FBA semi-face bricks alongside the full range of FBX and FBS face bricks. Visit our online shop to view current stock and options.