The case for ISSB
A building block that saves cement, labour and time.
Interlocking stabilised soil blocks are pressed from stabilised soil into a precise profile that locks course to course. The result is a wall that goes up faster, uses less mortar and performs well thermally — without changing how your team works on site.
Less cement, less mortar
The interlocking key carries alignment, so wall construction uses a fraction of the mortar a conventional block wall needs.
Faster walling
Dry-stacked courses go up quickly with a small trained crew, shortening the critical path on superstructure work.
Lower embodied carbon
Blocks are compressed and stabilised rather than kiln fired, avoiding the fuel burn associated with fired clay bricks.
Thermal comfort
The soil-based mass moderates internal temperature swings, reducing heating and cooling demand over the building's life.
Consistent dimensions
Machine pressing keeps blocks within tight tolerance, which cuts plaster thickness and rework on site.
Predictable budgeting
Fixed batch pricing means material cost is known up front, with delivery included in the price shown at checkout.
Supply specification
- Product
- Interlocking stabilised soil block (ISSB)
- Production
- Machine-pressed, stabilised, cured — not fired
- Batches
- 400, 800, 1,200, 1,600 and 2,000 bricks
- Above 2,000
- Priced on request
- Supply area
- Johannesburg and greater Gauteng