OBA 7n Concrete Trench Blocks – Strong, Sustainable Foundation Solutions

OBA 7n Concrete Trench Blocks are designed to provide durable, fire-resistant, and eco-friendly foundations for residential and commercial projects. Sized at 300mm wide, they perfectly suit 100mm inner and outer leaves with a 100mm cavity, offering a reliable trench foundation setup.

Features:

• Creates stable 100mm cavities in trench foundations
• Fire-resistant and sound-insulating for safety and comfort
• Strong 7 N/mm² compressive strength for lasting durability
• Made from 97% recycled aggregates for sustainability
• Manufactured to British Standards for quality assurance
• Block size: 350mm x 300mm x 100mm

Perfect For:

• Residential and commercial foundation systems
• Builders seeking eco-friendly, high-performance blocks
• Projects needing compliant, long-lasting trench foundations

Why Choose OBA 7n Trench Blocks?
These blocks combine strength, sustainability, and compliance to deliver a solid, sound-insulated foundation you can trust.