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Yes, interlocking pavers need sand both as a base and as a finishing touch to fill any gaps. Sand helps keep your pavers in place to avoid shifting, especially for areas with high foot or vehicle traffic. It also helps prevent water buildup by providing a channel for water drainage.

Concrete is often the default material for a driveway apron, and many local building codes may require this. If you’re not restricted to concrete, however, you can consider alternative driveway apron ideas, such as asphalt, pavers, or gravel. You can also stamp the concrete for an interesting texture, add color to the concrete for a little extra character, or add a swirled trowel finish to your concrete driveway apron.

While water-related pressure caused by poor drainage is one common cause of paver cracking, other factors can include ground movement beneath pavers, heavy loads and wear and tear over the pavers, and climates with constant freeze-thaw cycles. In general, pavers should be resealed every three to five years to prevent cracking.

You can walk on newly sealed pavers as long as they’ve had enough time to dry and cure—typically after 24 hours for patios and walkways. Even so, don’t rush it. Humidity, temperature, and the type of sealant you use can stretch that window up to 72 hours. Rushing it can leave footprints or even damage the finish, especially if the surface hasn’t fully hardened. For driveways, wait at least three full days before parking or driving over them. Always check your sealant label for the most accurate timeline, since not all products cure the same way.