As the labeling number suggests, this variation is a combination of gravel sizes #5 and #7. You may also find #57 used for retaining walls and landscaping.

When creating a gravel driveway, it's important to know which types are the best to use. Here is what you should use and what to stay away from.

Unless you are familiar with gravel for landscaping, more options exist than you likely think. Here's how to choose the right size based on the yard project.