Are you considering a tar and chip driveway for your home? Often referred to as "macadam" or "chip seal," this paving method offers a rustic, textured look that combines the durability of asphalt with the natural beauty of stone. Use our interactive calculator below to estimate the costs of your project.
Estimate Your Project Cost
*Note: This is an estimate. Prices vary based on site preparation, location, and stone choice.
Understanding Tar and Chip Driveways
Tar and chip paving is a time-tested method that has been used for over a century to surface roads and driveways. Unlike traditional asphalt, which is pre-mixed at a plant, tar and chip is created right on your property. Hot liquid asphalt (the "tar") is sprayed onto the base, followed immediately by a layer of crushed stone (the "chip").
Why Choose Tar and Chip?
Many homeowners prefer tar and chip over asphalt or concrete for several reasons:
- Aesthetics: You can choose the color of the stones to match your home's exterior or landscaping.
- Traction: The rough surface provides excellent grip for tires, especially on steep inclines or during icy winters.
- Low Maintenance: It doesn't require regular sealing like asphalt does. Small cracks often "self-heal" as the tar softens in the sun and fills them.
- Cost-Effective: Generally, tar and chip is more affordable than concrete or high-end pavers.
Factors That Influence the Cost
When using the tar and chip driveway calculator, keep in mind that several variables can shift the final quote from a contractor:
- Site Preparation: If your current driveway is in poor condition or if you are building on raw land, grading and base installation will increase the price significantly.
- Stone Selection: Basic granite or limestone chips are cheaper than decorative stones like river rock or marble chips.
- Geographic Location: Labor rates and material availability vary by region.
- Project Size: Larger projects may benefit from "economies of scale," where the price per square foot drops slightly.
How to Use the Calculator
To get the most accurate estimate, measure the length and width of your driveway in several places, especially if it has curves. For curved driveways, it's often best to break the area into smaller rectangles and add them together. Most residential driveways are 10 to 12 feet wide for a single car and 20 to 24 feet wide for two cars side-by-side.
Maintenance and Longevity
A well-installed tar and chip driveway can last 10 to 15 years. While it doesn't need sealing, you should be careful with snowplows. The blade of a plow can scrape up the loose stones if it's set too low. It is recommended to use a plow with a rubber blade or to leave a thin layer of snow on the surface to protect the chips.