Bulk delivery

Rainbow Rock

Rainbow rock is a multicolor blend of rounded gravel, typically mixing tans, golds, reds, grays and whites in one load rather than a single flat tone. It suits homeowners and contractors who want visual texture in beds, borders and dry creek beds instead of a monochrome stone. This page covers sizing, coverage, color consistency and where a mixed palette works best.

Rainbow Rock

What Rainbow Rock Is Used For

Decorative beds and borders

A 2 inch layer is standard for beds and border strips, and this is where the multicolor blend earns its keep, breaking up flat mulch or turf with visible tonal variation. Coverage runs 70 to 120 sq ft per cubic yard at that depth. Because the mix includes warm and cool tones, it reads well against both green foliage and neutral hardscape.

Best for foundation beds, tree rings, border strips where visual variety matters

Dry creek beds and drainage swales

The rounded shape drains fast and resists clogging, and a multicolor blend mimics the natural variation of real streambed rock better than a single-color stone. Smaller sizes can migrate in heavy flow, so larger anchor stones at the edges help keep the bed intact through storms.

Best for dry creek beds, swales, french drain top dressing

Low-traffic walkways

Larger 7/8 to 1.5 inch material is used for informal paths, usually over landscape fabric to slow weeds. Because it is rounded rather than crushed, it stays loose underfoot, so it suits casual garden paths more than daily-use walkways where firm footing matters.

Best for garden paths, stepping stone infill, low-traffic accents

Paver and slab joint fill

Small 3/8 inch material fills joints between flagstone or pavers with a permeable, decorative look, and the color mix hides dust and debris better than a single pale tone. Loose stones do migrate out of joints over time with foot traffic and rain, so plan on periodic top-off.

Best for flagstone joints, paver gaps, small accent pockets

Browse Rainbow Rock Delivery by Location

Pick your state, then your city for local pricing and delivery days.

Alabama

Arizona

Arkansas

California

Colorado

Connecticut

Delaware

District of Columbia

Florida

Georgia

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New Mexico

New York

North Carolina

North Dakota

Ohio

Oklahoma

Oregon

Pennsylvania

Rhode Island

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Wyoming

More About Rainbow Rock

Specifications

Typical size range
3/8 inch to 1.5 inches, sold in sub grades like 3/8, 5/8, 7/8 and 1 to 1.5 inch
Coverage per cubic yard
70 to 120 sq ft at 2 inches deep, 40 to 70 sq ft at 3 inches deep
Weight per cubic yard
2,600 to 3,400 lbs, about 1.3 to 1.7 tons
Yards to tons conversion
1 cubic yard equals 1.3 to 1.7 tons, 1 ton covers about 0.6 to 0.75 cubic yards
Drainage behavior
High permeability, free draining, resists clogging with fines
Typical color range
Blend of tans, browns, reds, grays, whites, occasional blue tones
Compaction and stability
Rounded material does not compact firmly, a crushed variant locks together better
Shape
Smooth, rounded to sub rounded pebbles, angular crushed variant also available

How the color blend is produced and graded

Rainbow rock is not a single quarry product, it is a blend, and that changes how you should shop for it. Most suppliers combine multiple rounded river stone sources, each contributing a different mineral tone, tans and golds from one deposit, reds and grays from another, so the final mix reflects whatever stone was on hand when it was blended. This means color ratios can shift subtly load to load, especially at the boundary between one delivery and the next. If your project spans multiple loads, order a bit extra up front rather than topping off later, since a second batch may lean warmer or cooler than the first. Sizing is graded separately from color, typically split into a fine crush around 3/8 inch and a coarser round fraction up to 1.5 or 2 inches. Ask your supplier whether their rainbow rock is a fixed blend or assembled per order, since that affects how consistent repeat deliveries will be.

Installing rainbow rock and preparing the base

Start by clearing the area of vegetation and debris, then grade the soil so water drains away from structures. Lay a woven or non-woven landscape fabric across the full bed, since skipping it lets the rock sink into soil and lets weeds grow up through the gaps within a couple seasons. Spread rainbow rock to about 2 inches deep for decorative beds, using a rake to distribute the color mix evenly rather than letting heavier stones settle to one edge of the pile. For walkways, compact a gravel base first, since the rounded stone itself will not lock into a firm surface. Keep the rock a few inches back from wood siding, stucco, or foundation walls to avoid trapping moisture against the structure. In beds under trees, expect leaf litter to collect on the surface and require occasional blowing or raking to keep the color visible.

How It Compares

Compared with river rock (single color). Single-color river rock, like a solid black, gray, or tan stone, shares rainbow rock's rounded shape and drainage but gives a uniform, modern look. Rainbow rock trades that uniformity for blended earth tones and visible texture, which suits rustic or naturalistic designs better than clean, minimalist ones.

Compared with pea gravel. Pea gravel is a single small, uniform size in a narrow tan or gray range, priced for budget-friendly uniform coverage. Rainbow rock spans a wider size range and is sold specifically for its multicolor variation, so choose it when visual interest matters more than a flat, consistent look.

Ordering and Coverage

How much rainbow rock do I need. Measure your area in square feet and multiply by your planned depth in feet, then divide by 27 to get cubic yards. At the standard 2 inch bed depth, expect 70 to 120 sq ft of coverage per cubic yard, with smaller 3/8 inch stone covering more area than larger 1.5 inch stone at the same depth. Order a little extra, since color blends can shift slightly between separate loads.

How it is sold and delivered. Rainbow rock is typically sold by the cubic yard or by the ton, with density running about 1.3 to 1.7 tons per cubic yard depending on stone size and roundness. Bulk orders are delivered loose by the truckload for dumping on a driveway or staging area, so plan access for a delivery truck and a spot that will not block drainage or foot traffic during unloading.

Common Rainbow Rock Questions

How much rainbow rock do I need for my project?
Multiply area in square feet by depth in feet, divide by 27 for cubic yards. One cubic yard covers roughly 70 to 120 sq ft at 2 inches deep, with smaller stone sizes covering more area per yard than larger ones at the same depth.
Should I order by the ton or by the cubic yard?
Either works since the two convert using density, about 1.3 to 1.7 tons per cubic yard for rainbow rock. Suppliers usually quote both, and one ton typically covers about 0.6 to 0.75 cubic yards.
Do I need landscape fabric underneath?
Yes, most installers recommend a fabric barrier under rock beds to slow weed growth and stop the stone from sinking into soil over time. Fabric eventually needs replacing as soil and debris build up on top of it.
Will the color mix look the same in every load?
Mineral colors are stable and do not fade, but the blend ratio can vary subtly between separate deliveries since rainbow rock is assembled from multiple stone sources. Order extra upfront for large projects to avoid a mismatched second load.
Is rainbow rock good for a driveway?
A crushed, angular version can compact well enough for light driveway use, but standard rounded rainbow rock will not lock into a firm surface and will rut and scatter under vehicle tires without a compacted base beneath it.