Engineered concrete slabs built to last a lifetime
Rib & block slabs, polystyrene slabs, the 3m Propless System, ready mix and engineering support — backed by over 40 years of experience and university load-tested performance.
Complete slab solutions from design to concrete
Royal Concrete supplies engineered rib and block slabs, polystyrene slabs, ready mix concrete and high-quality polystyrene products such as sheets and cornices. We deliver throughout Gauteng and surrounding provinces, as well as cross-border regions such as Lesotho — trusted for strength, reliability and long-term performance.
Rib & Block Slabs
Using our specialized concrete T-ribs and concrete blocks.
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Polystyrene Slabs
Lightweight rib and block with polystyrene blocks — insulated, quieter and faster to install on upper floors.
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3m Propless Slab System ™
A premium Royal Concrete solution engineered for faster builds and superior structural performance.
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Ready Mix Concrete
Quality-controlled ready mix concrete delivered to site for slabs, foundations and structural elements.
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Engineering Services
In-house engineering support and PR-engineer sign-off guidance for compliant, safe slab design.
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Polystyrene Cornices
Premium EPS decorative cornices — value, contractor, architect and premium ranges for clean ceiling profiles.
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Polystyrene Sheets & Blocks
Lightweight EPS sheets and poly slab blocks manufactured in multiple densities for construction and insulation.
Learn moreOur 3 types of slab systems
Every project is different. We supply three engineered slab systems — your engineer and our team help you choose the right one for your span, budget and build.
Concrete Rib & Block Slab
Our classic engineered system using T-ribs and concrete blocks — strong, proven and ideal for ground and suspended floors.
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Polystyrene Rib & Block Slab
The same engineered ribs with lightweight EPS infill — insulated, quieter and faster on upper floors.
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3m Propless Slab System ™
Our premium system — significantly reduced propping, lower overall slab cost and a faster, cleaner build.
Learn more →How our rib & block system works
From the first rib to the final concrete pour — engineered components positioned according to drawing, then inspected and signed off.
Engineered ribs
Pre-stressed T-ribs are positioned to span according to your structural engineering drawing.
Block infill
Concrete or polystyrene blocks fill the voids between ribs, forming the slab profile.
Mesh & pour
Reinforcement mesh is laid and ready mix concrete is poured to create a monolithic slab.
Inspect & sign-off
A qualified PR structural engineer inspects and signs off the final installation.
The Royal Concrete Difference
Manufactured in our 20,000 m² Factory
We manufacture the components we supply in our 20,000 m² facility in Johannesburg.
Tour Our Factory →Trusted Engineering Support
Load-tested systems and professional engineering support from design to sign-off.
Engineering Services →40+ Years of Experience
Four decades supplying engineered slabs across Gauteng and South Africa.
Learn more →Quality That Saves You Money
Faster installation and reduced structural load cut both time and overall cost.
See the Advantage →Technical Resources
Drawings, load tables, CAD details, brochures and installation guides.
Downloads →
Building South Africa's future, one slab at a time
Royal Concrete is one of South Africa's most trusted names in rib and block slab systems. For over four decades we've supplied engineered slab products and professional engineering support to builders, developers and homeowners across the country.
Our products are engineered for strength, designed for speed of installation, and delivered with the technical support to get your project signed off and standing for generations.
More about usResidential home in JHB
Steyn City
The 3m Propless Slab System ™
Traditional rib and block systems rely heavily on propping, slowing installation and increasing labour and setup cost. By significantly reducing propping while remaining lightweight and easy to handle, the Propless System speeds up the build.
Integrated input eliminates the need for shorter boards, reducing both material costs and preparation time. The result is a faster, cleaner, more cost-efficient slab solution.
View the full technical case study →See our slab systems in action
Watch how our engineered rib and block slab systems come together on site.
3 quick steps to get your slab
Send your plans
Send your plans through via WhatsApp or email — that's all we need to start.
Receive your quote
Get a quote on a few slab systems along with clear explanations of each option.
We deliver to site
Pay the required deposit and our engineer takes over — slab delivered to site, hassle free.
Customer reviews
"Excellent service from zaheer Daya. Best Concrete and best ribs and block I will recommend everyone's there for quality service and product"
"Really good polystyrene rib and block at our storage business. Excellent service and delivery. Slab and ready mix all went well. Really happy with these guys."
"I have used Royal Concrete on two new builds to date and always get exceptional service from the team! In particular Zaheer, Aadil and Imtiaz are always available and super helpful. Highly recommend these guys!"
"Thank you Zahir for the best service. You went over and above to assist me with my project. I recommend Royal concrete any time the opportunity presents. Your customer service from your team has been amazing since day 1."
From our blog
Make the choice between a Rib and Block Slab - with Concrete Blocks vs Polystyrene Blocks
Concrete Blocks vs Polystyrene Blocks. The conventional rib and block slab always combines a concrete rib and a concrete block. Over the last few years many Eng
Why do I need an Engineer for my building project?
By law, every project needs a PR Engineer (certified Professional Engineer). The Pr Engineer who is appointed by the homeowner or contractor then becomes in cha
What Affects the Cost of a Rib & Block Slab?
No two slabs cost the same. Span, loading, system choice, concrete strength, transport, pumping, site access and engineering all move the number — and the cheapest quote is not always the cheapest build.
Need a slab quote or technical guidance?
Contact our team for pricing, expert advice and project support. Send your plans and we'll do the rest.