Formulas & Conversions |
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| 1728 cubic in. | = | 1 cubic ft. |
| 27 cubic ft. | = | 1 cubic yard |
| 144 square in. | = | 1 square ft. |
| 9 square ft. | = | 1 square yard |
| 1 ton | = | 2000 lbs. |
| 1 acre | = | 43,560 sq. ft. |
Cubic Yard Formula
W' x L' x D"
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324
* Width and length in feet,
depth in inches
Calculate Materials
Calculate It!
Use this comprehensive set of formulas and calculators to help you determine the quantity of building or landscape material you will need for your project. Don’t see a way to calculate the specific material you need? Contact Us and ask to speak to a sales person. We’ll be happy to help.
Volume & Perimeter
Most products are sold in cubic feet which is a measure of volume. Adding and subtracting rectangular, circular, and triangular volumetric measurements may assist you in planning efforts with your landscaping project. Volume calculations are necessary when using aggregate (rock), sand, soil, mulch, compost, and concrete. Obtaining the measurements in the diagram below will allow you to use our Volume Calculator or Permimeter Calculator to estimate the amount of materials for your project.
Materials Coverage
Landscape supplies tend to vary in depth requirements depending on the product and depending on the application. Keep in mind that some materials may compact more than others when estimating the amount of materials to order. Consult with us for a more detailed estimate of materials. The following table is a general guide that may help you estimate the amount of product needed for common landscape projects.
PRODUCT TYPE |
CATEGORY | QUANTITY |
| Brick | Veneer (wall) | 6-7 bricks per sq. ft. |
| Paving (flat) | 4.5 bricks per sq. ft. | |
| Fieldstone / Wallstone * | Head size, single row | 30-40 sq. ft. per ton |
| Head size, double row | 15-20 sq. ft. per ton | |
| Flagstone * | 2” minus | 50-80 sq. ft. per ton |
| 1 ½” | 80-100 sq. ft. per ton | |
| 1 ¼”minus | 110-140 sq. ft. per ton | |
| 1” minus | 120-160 sq. ft. per ton | |
| Ledgestone * | 3”-5” thickness | 30-40 sq. ft. per ton |
| River Cobbles * | Large (6-12”) | 30-40 per sq. ft. per ton |
| Small (2-6”) | 70-80 per sq. ft. per ton |
* all natural stone calculations are approximate due to variations in density and/or thickness
Weight Per Yard
Product weight varies according to the batch, moisture conditions, and other variables. Use the following table as a general guide to determine the weight of a given product type when ordering by the yard.
PRODUCT TYPE |
LBS PER YARD |
| Bark & Mulch | 600-800 |
| Soil Mixes | 1300-1650 |
| Lava Rock | 1480-1720 |
| Gravel | 2500-2600 |
| Pebbles | 2300-2800 |
| Cobbles | 2800-3000 |
| Decomposed Granite | 2600 |
| Sand | 2800 |
| Concrete Mix | 3240 |
* weights vary according to moisture content