Engineered Retaining Blocks Engineered Retaining Blocks is a Brisbane based company, specialising in the manufacturing of engineered blocks – designed specifically for retaining walls. Our incredible quality engineered blocks are a contemporary alternative to concrete sleepers, sandstone blocks, bulky stone or big block walls.Engineered Retaining Blocks are proud to manufacture our blocks right here in Brisbane – with our plant located at Sumner Park. We use cutting-edge, leading technology to ensure the consistent sizing and quality of our engineered blocks.If you are looking for a high-quality, affordable and sophisticated alternative for your retaining wall projects, then look no further than Engineered Retaining Blocks. Get in touch with the Engineered Retaining Blocks office today to place an order.