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No, mulch itself does not necessarily attract termites even though it’s usually made of shredded wood. Some types of mulch like cedar or cypress resist termites because they’re toxic or unappetizing to the wood munchers. However, when the mulch is deep enough, say three inches or more, it creates a perfect habitat for insects of all kinds to build nests.

The depth of your decomposed granite depends on its intended use, but around 3 to 4 inches is the most common depth. Driveways that need to support a lot of weight should be at a depth of no less than 6 inches. Walkways that won’t see a lot of weight but lots of foot traffic should be built at a depth of 3 to 4 inches, and patios should also be between 3 and 4 inches deep.

When it comes to which stone is better, crushed or natural gravel, it all depends on the project. Crushed stone is a great base and filler material for projects like retention walls, concrete slabs, driveways, pipes, and drains. Gravel is a common choice for visually attractive landscaping projects like walkways, above-ground drainage systems, patios, and garden borders.

Gravel’s biggest pro is its cost-effectiveness. For example, a gravel road or driveway is much more affordable than its asphalt counterpart. Gravel is also much less expensive than the cost of pouring a concrete slab if you’re building a patio or similar structure.

However, regarding comfort and convenience, gravel is far less foot-friendly than smoother substances like concrete or asphalt. It’s also more of a challenge to drive on and may kick up dust, resulting in the inevitable need for extra car washes. Lastly, there’s a chance it might move with rain or snow.