Kirk Allen Landscape Supply | https://www.kirkallenlandscapesupply.com | 📞 973-347-3117
When it comes to landscaping, the details make all the difference. One of those often-overlooked details is river rock size—but choosing the right size is just as important as selecting the right plant or mulch. Whether you’re outlining a garden bed, building a decorative pathway, or lining a dry creek bed, the size of river rock you choose can impact both the look and function of your project.
At Kirk Allen Landscape Supply, we get a lot of questions from customers across Hunterdon County and beyond who are trying to figure out which river rock size best fits their vision. If you’re in the same boat, this guide will walk you through the most popular sizes and the best ways to use them.
What Are River Rocks, Anyway?
River rocks are smooth, rounded stones that have been shaped by natural water erosion. They’re known for their beautiful variety of colors and sizes and are often used in both decorative and functional landscaping projects. Their durability, drainage capability, and natural aesthetic make them a favorite for homeowners and landscape contractors alike.
Why Size Matters in River Rock Landscaping
It’s easy to think that all rocks are created equal, but in landscaping, size plays a crucial role. Here’s why:
- Drainage: Smaller rocks provide better compaction and are ideal for paths or areas with foot traffic.
- Erosion Control: Larger rocks can help slow water movement on slopes or in drainage ditches.
- Aesthetics: The scale of rock used can enhance or clash with surrounding materials, so proportion is key.
Choosing the wrong size may cause drainage problems, safety issues, or simply make the finished project look off-balance.
Common River Rock Sizes (And Where to Use Them)
🟤 Pea Gravel (⅜” to ½”)
Pea gravel is one of the smallest sizes available. These little stones are round and smooth, with a natural mix of colors like tan, gray, and white.
Best For:
- Garden pathways
- Play areas
- Patio bases
- Between stepping stones
Pros:
- Soft underfoot
- Affordable and easy to spread
- Excellent drainage
Considerations:
Not ideal for steep slopes or areas with heavy water runoff, as they can easily be displaced.
🪨 Small River Rock (¾” to 1½”)
This is a versatile size that balances aesthetics and function. It’s large enough to stay put in most conditions but still small enough to spread easily.
Best For:
- Decorative ground cover
- Borders around flower beds
- Drainage areas
Pros:
- Offers a clean, polished look
- Won’t scatter easily
- Great for erosion control
Considerations:
Can be tough to walk on barefoot—best for ornamental use or areas with minimal foot traffic.
🪵 Medium River Rock (1½” to 3”)
This is where things start to get more dramatic in terms of appearance. These rocks are ideal for adding bold visual contrast or controlling erosion in larger spaces.
Best For:
- Dry creek beds
- Large planting beds
- Water features
Pros:
- Striking visual impact
- Heavy enough to stay put on slopes
- Great for high-flow drainage areas
Considerations:
Not great for walking paths—use decorative stepping stones instead.
🪨 Large River Rock (3” to 5” and up)
These are statement pieces. Large river rocks can serve both aesthetic and practical purposes, especially in commercial landscaping or erosion-prone areas.
Best For:
- Retaining walls
- Rock gardens
- Shoreline stabilization
Pros:
- Excellent for erosion control
- Adds structure to landscape design
- Works well with boulders and stone features
Considerations:
Harder to install and more expensive per ton. You’ll also need proper edging to prevent them from shifting.
Tips for Choosing the Right Size
Here are a few practical tips to help you decide what size works best for your project:
1. Think About the Purpose
Is this area going to see foot traffic? Will water run through it? Is it purely decorative? The answers will point you toward either smaller or larger rock sizes.
2. Consider Mixing Sizes
For a more natural appearance, combine multiple sizes. For example, use pea gravel around pavers and small river rock in adjacent beds.
3. Don’t Forget Edging
Especially with smaller sizes, good edging is essential to keep rocks from spreading into unwanted areas.
4. Estimate the Quantity Properly
River rock is sold by the cubic yard or ton. Knowing the square footage and desired depth will help you get an accurate estimate. A quick call to our team at 973-347-3117 can help with calculations.
Local Expertise for Hunterdon County and Beyond
If you’re in Hunterdon County, NJ (or anywhere nearby) and searching for “river rock near me,” Kirk Allen Landscape Supply is your trusted source for high-quality bulk river rock in all sizes. Our team can help you:
- Select the right size and color
- Calculate how much you need
- Arrange delivery right to your property
We offer competitive pricing, expert advice, and fast, friendly service that has made us a go-to supplier for contractors and homeowners alike.
Final Thoughts
Choosing the right river rock size can elevate your landscaping from basic to beautiful. Whether you’re designing a formal garden or building a backyard escape, don’t underestimate the power of a perfectly sized stone. With a little planning—and the right supplier—you can get lasting results that look incredible year-round.
Need help picking the right river rock for your property? Call Kirk Allen Landscape Supply today at 973-347-3117 or visit us online at www.kirkallenlandscapesupply.com. Let’s bring your landscape to life, one rock at a time.
