How deep should the base be for my Vancouver paver driveway?

For a paver driveway in Metro Vancouver, you need a minimum 10-12 inches of compacted granular base — this is non-negotiable for long-term performance under vehicle loads in our wet climate.

The base depth for driveways is significantly deeper than patios or walkways because driveways must support concentrated wheel loads from vehicles weighing 3,000-6,000+ pounds. A typical car exerts about 35-40 PSI under each tire, while foot traffic on a patio creates only 12-15 PSI. This concentrated loading, combined with Metro Vancouver's persistent rainfall and clay-heavy soils, makes adequate base depth the single most critical factor in driveway longevity.

Why 10-12 inches is essential in Metro Vancouver: Our marine climate delivers over 1,200mm of annual rainfall, with 70% falling between October and March. This persistent moisture saturates inadequate bases, softens the subgrade clay soil common throughout Surrey, Richmond, Delta, and Langley, and causes pavers to settle unevenly under vehicle loads. A shallow base (6-8 inches) might work in Calgary's dry climate, but it will fail within 1-3 years in Vancouver's wet conditions. The base material — typically 3/4-inch minus crushed gravel or road base — must be installed in 2-inch lifts and compacted to 95%+ density with a plate compactor weighing at least 300 pounds.

Proper driveway base construction starts with excavating 14-16 inches below the finished paver surface (10-12 inches for base + 1 inch bedding sand + 3-1/8 inches for 80mm pavers). Install geotextile separation fabric over the clay subgrade to prevent soil migration into the base. The base material should be angular crushed rock with fines (3/4-inch minus or 19mm minus) that compacts tightly and sheds water. Each 2-inch lift must be compacted before adding the next lift — dumping 12 inches of gravel and compacting only the surface guarantees failure.

Additional considerations for Metro Vancouver driveways: Install edge restraints along all unconfined edges, including the street edge that many installers skip. Use 80mm (3-1/8 inch) thick pavers rated for vehicular traffic — standard 60mm patio pavers will crack under vehicle loads. Establish minimum 2% slope away from your house and garage. Consider permeable pavers if your municipality offers stormwater incentives or if drainage is challenging on your property.

When to hire a professional: Driveway installation requires specialized equipment (large plate compactors, laser levels for grading, paver saws), proper base material sourcing, and experience with vehicular loading requirements. A poorly built driveway base cannot be fixed without complete reconstruction. Professional driveway installations in Metro Vancouver typically cost $20-$48 per square foot installed, with a typical 600 sq ft driveway running $12,000-$28,000 including removal of existing concrete or asphalt.

Need help finding an experienced driveway contractor? Vancouver Interlock can match you with professionals who understand Metro Vancouver's unique climate and soil conditions.