The Crusher Run Needed for a Lane calculator computes weight (tons) and volume (cubic yards) of crusher run needed for a driveway or lane based on the length and width of the lane and the desired depth of crusher run (crushed stone).
INSTRUCTIONS: Choose units and enter the following:
- (L) Length of the Lane
- (W) Width of the Lane (7' default for truck width)
- (D) Depth of Crusher Run (1.5" default for thin layer)
Crusher Run Needed (CR): The calculator returns the weight of crusher run in tons (U.S. tons = 2,000 lbs) and volume of crusher run in cubic yards. However, both values can be automatically changed to compatible units via the pull-down menu.
The Math / Science
Crusher run is usually delivered via at dump truck, such as the 20 ton truck pictured. An experience operator will spread the stone by chaining the dump door to be open by a few inches. The opening will dictate how thick the stone is laid. A delivery of 22 tons at the farm laid a 7 foot wide swath that was between an inch and two inches deep for about 350 feet in one pass. This is not uncommon.
The volume of crusher run calculation is a simple three dimensional calculation, where
volume = length • width • depth
The weight of the crusher run is based on the formula
where:
- volume is the volume of stone for the driveway or lane
- density of crusher run ( 2195.12 kg/m3)
