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3/4", 1-1/2" Premium Multi-Colored Mountain Granite - $43.95 per ton


French Drain Systems

Before starting any project, on your property, that requires digging you should call 811.

811 is a free service that will send someone out to survey the area you will be digging in to make sure you don't accidentally cut or damage any underground cable such as gas lines, water lines, electrical lines, etc.

A French drain is a simple trench dug in the ground in the most problematic areas of the yard, so that the trench will drain water away from the problem area. The trench is filled with a perforated pipe (usually PVC or polyethylene pipe) wrapped in a water-permeable fabric, and the pipe is covered with several layers of stone or gravel.

French drain systems work because gravity causes the water to flow downhill, and water will always follow the path of least resistance, so it is naturally drawn down through the stones into the hollow pipe where the water can flow freely on a downward slope towards a municipal drain, a rain barrel, or any other suitable location for water drainage.

There are many local suppliers for the perforated drainage pipe and the fabric needed in the Denver area ranging from some Ace Hardware stores to Lowes, Home Depot etc, to commercial pipe suppliers such as ADS and Whitecap.

We sell and delivery all rock needed for your french drain and any other home, ranch or commercial project requiring local river rock, granite, roadbase, structural fill, sand, pea gravel, squeegee and concrete sand. The information on french drains is provided as a service to our customers. We are not experts on french drain installation, just the materials needed to make your project a success. Call us at 720-298-0948 with any questions about the amount of rock needed for your project, the amount and for an exact material and bid to your home or business.

How to Install a French Drain: 6 Steps to Achieving Proper Drainage


Mountain Granite

Tonnage Example - Use calculator below to determine amount needed
Product Length Width L x W = SF SF / Depth Tons
3/4" 30 Ft 40 Ft 1200 100 12
1-1/2" 30 Ft 40 Ft 1200 80 15

To Order the Correct Amount of Material

Measure the length and width of the area to be covered. If you don't have a tape measure, walk the length and width of the area. Figure each full step as 2 1/2 feet. Get the total square footage of the area by multiplying the length by the width.

Example: 30 feet long by 50 feet wide = 1500 square feet.

1 ton of Structural Fill, Crusher Fines and Screened Fill Dirt covers 100 square feet 2" deep.

For every 2 inches of depth you will need 15 tons of the material

Please note: This is only a rough indication of the amount of material you may need. Actual dimensions may vary due to irregularities in soil types and established rough grade.

Once you determine your material and amount needed, call us at 720-298-0948

Or use the Contact page to arrange for delivery and pricing.

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