Company
WHERE QUALITY AND STRENGTH MEETS AFFORDABILITY AND INTEGRITY

About US
Amalgamated Slab Company is a leading rib and block supplier in Johannesburg. We deliver quality, affordable, and durable concrete slab solutions tailored to your building needs. Based in the South of Johannesburg, we specialise in manufacturing, engineering, and installing precast slab products for a wide range of residential, commercial, and industrial projects.
Whether building a double-storey home, apartment complex, or large-scale commercial structure, our rib and block systems are designed to withstand load, reduce cost, and speed up construction—all without compromising on strength or safety.
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Why Choose Us as Your Rib and Block Supplier?
- Precision-engineered slab systems
- Affordable pricing without quality compromise
- Fast turnaround times and reliable delivery
- Expert engineering and on-site installation services
- Products manufactured to international standards
We don’t just supply slabs; we deliver turnkey slab solutions that combine innovation, structural integrity, and cost efficiency.

Ready to Build with Strength and Affordability?
Partner with Amalgamated Slab Company
Partner with trusted concrete slab contractors who prioritise quality, affordability, and reliability. Contact Amalgamated Slab Company today to discuss your project requirements, request a site inspection, or receive a customised quote. Let us help you build with confidence and strength.
SERVICES
Manufacturing and Delivery of Slab Materials Engineering Services
Manufacturing and Delivery of Slab Materials Engineering Services
- Full slab design ( with bending schedules )
- On-site slab inspection
- Engineer’s certificate
Installation Services
Install slab and pour concrete
Contact us
Plot 48 Main Service Road
Olifantsvlei
Kibler Park
2091
Phone
WhatsApp or SMS
Products
We offer a wide range of products manufactured to international standards. Our products are of the highest quality, we have excellent turn-around times and we offer very competitive prices.

T-Beams
Our pre-stressed T-beam systems enhance conventional rib and block systems. Due to the additional “spine”, an entire slab with a maximum length of 4.2 m can be erected without props. Greater lengths will need a row of props down the centre.
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Offers:
- Cost-effective concrete slab
- 30% saving on concrete
- 67 – 100% saving on propping
- 50% time saving on installation

Builders Lintels
Our concrete lintels are designed to carry structural loads above wall openings, including windows, doors, sliding doors, garage doors, and staircases. They act as vital support beams that distribute weight and reduce stress on masonry. With excellent compressive strength, they provide lasting structural integrity.
Our concrete lintels are available in standard dimensions to suit popular brick sizes:
- 4½-inch lintels: Ideal for standard/stock brick applications
- 6-inch lintels: Perfect for maxi brick construction

PRE-STRESSED RIBS
- Pre-engineered for high load-bearing performance
- Conventional system with propping required every 1.2 m
- Designed for use with concrete or polystyrene slab blocks
