AREA(FACE FOOT)=Length X Width(Height)
DEPTH IN FEET=Depth in inches divided by 12
CUBIC FEET REQUIRED=Length X Width(Height) X Depth
CUBIC YARDS REQUIRED=Cubic feet divided by 27
CIRCLE AREA=3.14 X Radius Squared
CIRCLE CIRCUMFERENCE=3.14 X Diameter
TRIANGLE AREA=1/2 of Base x Height
***One Cubic Yard = 27 Cubic Feet
***One Ton = 2000 pounds
***One Ton of Construction Aggregate = 3/4 of a cubic yard
TONNAGE REQUIRED=Cubic Feet X Pounds per Cubic Foot divided
by 2000
APPROXIMATE WEIGHTS PER CUBIC FOOT:
***Michigan Granite Boulders:170 pounds per cubic foot
***Michigan Limestone:155 pounds per cubic foot
***Canadian Limestone:165 pounds per cubic foot
***Michigan Grindstone:136 pounds per cubic foot
MICHIGAN BOULDER COVERAGE:
SIZE
|
APPROXIMATE WEIGHTS
|
APPROXIMATE FACE FEET PER TON
|
4"-8" |
20-60lbs. |
30-50 |
4"-12"
|
20-100lbs.
|
18-19
|
8"-18"
|
100-200lbs.
|
15-16
|
12"-24"
|
125-250lbs.
|
13-14
|
18"-30"
|
205-530lbs.
|
11-12
|
24"-36"
|
250-1100lbs.
|
9-10
|
30"-42"
|
530-2000lbs.
|
7-8
|
36"-48"
|
1100-2800lbs.
|
6-7
|
APPROXIMATE BOULDER WEIGHTS:
SIZE
|
WEIGHT
|
12"
|
100lbs.
|
14"
|
125lbs.
|
18"
|
205lbs.
|
24"
|
253lbs.
|
30"
|
530lbs.
|
36"
|
1100lbs.
|
48"
|
2800lbs.
|
***One cubic yard of 4"-12" oversize cobblestone
weighs approximately 3,200 pounds.