How many tons of boulders do i need

No project is too big or too small. We also deliver. MDI maintains a fleet of dump trucks and can deliver anywhere from across the street to across the country. Multiply the width by the length. Figure out the depth of your layer of rock. Convert the depth measurement from inches to feet. Calculate cubic feet of the area. Purchase enough landscape rock to cover the area.

The average weight of a sandstone boulder is approximately pounds per cubic foot. Limestone boulders and granite boulders in most cases weigh more. They average about pounds per cubic foot. To estimate the quantity, you need to convert the area into cubic feet by multiplying length x width x height. Dry-stack concrete block walls under 3 feet in height should still have a drain behind them because the flat blocks fit together so tightly that water cannot drain through quickly enough during a heavy rain.

Filter fabric is needed behind the dry-stack walls , too, to prevent soil from migrating through the cracks. Base Material Round rocks such as pea gravel rolls and dislodge under pressure resulting in failure of the retaining wall. Lay a inch layer of the crushed base material in the trench.

Next compact it and level it using either a hand or mechanical compactor. Backfill refers to the dirt behind the wall. In order to provide proper drainage, at least 12 inches of granular backfill gravel or a similar aggregate should be installed directly behind the wall. Compacted native soil can be used to backfill the rest of the space behind the wall.

If you dig away on the border slightly to make room for the fence , concrete in the concrete posts and slide in a couple of 1ft concrete gravel boards to effectively hold your land in place it will be fine.

Then, add these up and divide by the total number of measurements taken. Next, choose the type of rock you will use. If you are unsure, choose fieldstone.

Fieldstone is usually sold as a combination of granite, limestone, and sandstone. Begin typing your search term above and press enter to search. Press ESC to cancel. Skip to content Home Physics How much are large boulders? Ben Davis January 27, How much are large boulders?

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