Gravel Patio: How to Build One, Best Gravel and How Much You Need
How to build a gravel or pea gravel patio: choose the best gravel, prepare a compacted base, add edging and fabric, and calculate how much gravel your patio needs. Includes cost and a worked example.
Nestiex Team ·
A gravel patio is one of the cheapest and fastest ways to add outdoor living space:
- it drains instantly after rain,
- it needs no mortar or concrete, and
- you can build one in a weekend.
Pea gravel patios are the most popular version, thanks to their soft look and comfortable feel underfoot.
This guide covers the best gravel for a patio, how to build a gravel patio step by step, and how to calculate exactly how much gravel you need. For quick numbers, try the patio gravel calculator.
Best gravel for a patio
| Gravel | Feel | Stability | Best for |
|---|---|---|---|
| Pea gravel (3/8”) | Smooth, comfortable | Shifts without edging | Lounging, fire pits, relaxed seating areas |
| Crushed stone (3/4” or #57) | Angular, firmer | Locks together better | Patios with dining tables and chairs |
| Decomposed granite | Fine, packs firm | Good when compacted | Dry climates, a smooth “hardpan” look |
| River rock | Large and round | Unstable underfoot | Borders and accents, not seating areas |
Angi notes that 3/8-inch pea gravel is the size most commonly used for patios, dog runs, fire pits and pathways (Angi).
Round pea gravel shifts more than angular stone, so if you plan to set a dining table on it, choose crushed stone or add a stabilizing grid. More on pea gravel in our pea gravel guide.
How to build a gravel patio (step by step)
1. Plan and mark the area
Mark the outline with stakes and string, or with spray paint. Keep the patio slightly sloped away from the house so water drains away. Paver guidance uses 1–2%, about ½ inch of fall over 4 feet, and the same works for gravel (Unilock).
2. Excavate
Remove grass, roots and topsoil. Dig deep enough for a compacted base plus your top layer of gravel, so the finished surface sits level with or just above the surrounding ground.
3. Compact the soil and add a base
Compact the soil with a plate compactor. For a firm patio that won’t sink under chair legs, add a layer of compacted crushed stone (crusher run or 3/4-inch base), compacted in thin lifts.
Unilock recommends a base of 4–8 inches under paver patios (Unilock tech guide). A loose gravel patio carries less load, so many builders use the shallower end of that range.
4. Install edging
Edging is essential for a gravel patio, especially with pea gravel, which rolls sideways under foot traffic. Options include:
- steel or aluminum strips
- brick or paver soldier courses
- natural stone
- timber
- plastic paver edging
5. Lay landscape fabric
Roll out landscape fabric over the compacted base. It keeps weeds down and stops the top gravel from mixing into the base.
6. Spread the top gravel
Spread the patio gravel evenly and rake it level. For decorative top layers, a depth of about 2–3 inches is common. That matches HomeGuide’s recommendation for the decorative top layer of a gravel driveway (HomeGuide). Deeper loose stone feels unstable underfoot.
7. Add stepping stones or pavers (optional)
Flagstone or paver stepping stones set into the gravel make the patio easier to walk across, and help chairs sit level. Paver-and-gravel patios are a popular combination.
How much gravel do I need for a patio?
Cubic yards = length (ft) × width (ft) × depth (in) ÷ 324
Example: a 14 × 12 ft pea gravel patio
| Layer | Depth | Cubic yards | Tons (× 1.4) |
|---|---|---|---|
| Compacted base (crusher run) | 4 in | 2.07 | 2.9 |
| Pea gravel top layer | 2 in | 1.04 | 1.5 |
| Total | 6 in | 3.11 | 4.4 |
Add 10% for the base to allow for compaction. The 1.4 tons per yard figure comes from dry gravel at about 105 lb/ft³ (Engineering ToolBox).
Gravel needed for common patio sizes (2-inch top layer only)
| Patio size | Cubic yards | Tons | 0.5 ft³ bags |
|---|---|---|---|
| 10 × 10 ft | 0.62 | 0.86 | 34 |
| 12 × 12 ft | 0.89 | 1.24 | 48 |
| 16 × 16 ft | 1.58 | 2.21 | 86 |
| 20 × 20 ft | 2.47 | 3.46 | 134 |
Use the patio gravel calculator for other sizes and depths. The paver base guide covers the base layer if you plan to add pavers.
How much does a gravel patio cost?
The stone itself is inexpensive. HomeGuide’s 2026 delivered prices (source):
- Pea gravel: $28–$45 per ton
- Crusher run (for the base): $24–$34 per ton
For the 14 × 12 ft example above:
- about 1.5 tons of pea gravel ≈ $42–$68
- about 3.2 tons of base (with 10% extra) ≈ $77–$109
- plus delivery, edging and fabric
See the gravel cost guide for delivery fees and bag prices.
Gravel patio ideas on a budget
- Pea gravel and a fire pit: the classic low-cost backyard upgrade.
- Gravel with flagstone stepping stones: gives solid footing for chairs.
- Gravel and paver border: a paver edge keeps stone in and looks finished.
- Mixed textures: crushed stone for the main area, pea gravel or river rock as an accent border.
Frequently asked questions
What is the best gravel for a patio? 3/8-inch pea gravel for comfort, or 3/4-inch crushed stone for a firmer surface under furniture.
How deep should gravel be for a patio? About 2–3 inches of top gravel over a compacted crushed-stone base.
Do I need landscape fabric under a gravel patio? Yes, it is strongly recommended to block weeds and keep the layers separate.
How do you keep pea gravel in place on a patio? Use solid edging, compact a base underneath, and keep the top layer thin (2–3 inches).
Sources
- Angi, Pea Gravel Sizes: angi.com
- HomeGuide, How Much Does Crushed Stone or Gravel Cost? (2026): homeguide.com
- HomeGuide, How Much Does a Gravel Driveway Cost? (2026): homeguide.com
- Unilock, Base Preparation and Basic Tech Guide: unilock.com
- Engineering ToolBox, Dirt and Mud – Densities: engineeringtoolbox.com