South Sound Driveway Guide

How Much Gravel Do I Need for a Driveway?

If you’re planning a driveway project, one of the most common questions is: how much gravel do I actually need?
Ordering too little can delay your project, and ordering too much can cost more than necessary.
This guide breaks it down with practical tips for Lacey, Olympia, Tumwater, and Tenino.

Typical Depth
3–6 inches (most driveways)

Best Material
Road base / ¾” minus

Pro Tip
Round up for compaction

1) Measure Your Driveway

Start with three measurements:

Length (in feet)
Width (in feet)
Desired depth (in inches)

Depth Guidelines

• Light residential use: 3–4 inches

• Heavy vehicles / long driveways: 5–6 inches

2) Convert to Cubic Yards

Gravel is commonly sold by the cubic yard (or by the ton). Use the formula below to estimate what you need.

Formula

Length (ft) × Width (ft) × Depth (ft) ÷ 27 = Cubic Yards

Example

50 ft × 12 ft driveway at 4 inches deep (0.33 ft):



          50 × 12 × 0.33 ÷ 27 ≈ 7.3 cubic yards

Recommendation: Round up for compaction and uneven ground.

3) Choose the Right Gravel

Not all gravel performs the same. For driveways, crushed materials typically hold up best.

Road Base / Crushed Rock
Best overall stability and compaction.

¾” Minus
Compacts tightly; great under vehicle traffic.

Drain Rock
Useful for drainage layers; can shift if used alone.

Avoid:
rounded decorative gravel for driveways— it tends to move under traffic and requires more maintenance.

4) Prep Your Site for Delivery

Good prep makes your driveway last longer and helps the material perform properly.

Remove grass, roots, and soft soil
Consider landscape fabric to reduce weeds
Grade for drainage (standing water causes problems)
Confirm access for a dump truck (width/clearance)

5) Schedule Gravel Delivery

Delivery saves time, labor, and vehicle wear compared to hauling gravel yourself. Gravel Today delivers throughout
Lacey, Olympia, Tumwater, and Tenino, and we’ll work with you on placement based on site conditions.