What are edge restraints?

Block paving relies on edge restraints to stay in place and maintain its integrity over years of use. These restraints are the physical boundaries that stop individual blocks from creeping outward, a problem that occurs naturally as traffic, weather, and ground movement place pressure on the outer edges of a paved surface.

Edge restraints typically take three forms:

• Kerbs: Concrete or stone curbs set into a prepared foundation, often used where paving meets roads, driveways, or pathways.
• Edgings: Shorter, more decorative borders (sometimes plastic, metal, or concrete) that define the paving edge and contain lateral movement.
• Haunching: Concrete or mortar applied to the outer face and sides of perimeter blocks to lock them firmly in place and prevent rocking or displacement.

Without adequate edge restraints, block paving will eventually bow, buckle, or spread outward, especially in driveways and high-traffic areas. Proper installation of these restraints during the initial laying process is essential to ensure the surface remains stable and level. When evaluating block paving contractors in Cheltenham, confirm they specify and install appropriate edge restraints as part of their standard practice, as this directly affects how long your paved surface will last.