What Is Interlock?
Interlock pavers are:
- Precast blocks made of concrete, stone, or brick.
- Designed with tongue-and-groove or tight-fit edges to "lock" together.
- Installed over a compacted gravel and sand base, with no mortar.
Once installed, the pavers hold each other in place through friction and pressure, forming a strong, flexible surface.
✅ Benefits of Interlock:
| Feature | Benefit |
|---|---|
| Modular system | Each piece fits with others to form a stable, attractive surface. |
| Highly durable | Can handle heavy loads (great for driveways) and resist cracking. |
| Easy to repair | If a paver cracks or stains, just lift and replace that one piece — no need to redo the whole area. |
| Customizable | Available in a wide range of shapes, sizes, colors, and patterns for a unique look. |
| ️ Permeable options | Some designs allow water drainage, reducing runoff and puddling. |
⚠️ Things to Consider:
- Upfront cost: More expensive than plain concrete or asphalt due to materials and labor.
- Maintenance: Joints may need to be re-sanded every few years. Weeds can grow in the cracks if not sealed.
- Installation quality matters: Poor base prep can lead to uneven settling or shifting.
Summary:
Interlock = beautiful, strong, and repairable.
It’s perfect for people who want:
- A high-end, elegant outdoor surface
- Long-term durability
- Easy future repairs
Whether you're designing a patio, driveway, or garden path, interlocking pavers offer flexibility in both style and function.