Granite Boulders Approximate Weight Chart |
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| Size | Weight in Pounds |
| 4-8″ | 25 |
| 8-12″ | 80 |
| 12-18″ | 130 |
| 18-24″ | 500 |
Natural Stone Calculations |
|
| Material | Weight of Lbs per Cubic Foot |
| Wisconsin Limestone | |
| outcropping, 8″ cut drywall, flagstone, and most other natural stone | 0.165 |
| Wisconsin Sandstone | |
| sandy creek, highland brown | 0.150 |
| Wisconsin Granite Boulders | 0.180 |
| Aqua Blue Boulders | 0.200 |
To calculate weight of a piece of stone
For anything Square or Rectangular:
Length x width x height (in inches) ÷ 1.728 x (weight of pounds per cubic foot) = lbs per stone
For anything Circular
To calculate weight of each piece of stone:
Length x width x height (in inches) ÷ 1.728 x (weight of lbs per cubic foot) / 4 x 3.1416 = lbs per stone
Calculating Areas and Circumference |
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Calculate Area Of a Circle Area = Π x Radius2 Π = 3.1415Calculate Circumference Of a Circle 2 x Π x Radius |
Calculate Area Of a Parallelogram Area = Base x Height |
Calculate Area of a Triangle Area = Base x Height / 2 |
Calculate Area Of a Trapezium Area = 1/2 x (B1+B2) x Height |
Bluestone Reference Chart |
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| size | SQ FT | size | SQ FT |
| 12×12 | 1 | 24×24 | 4 |
| 12×18 | 1.5 | 24×30 | 5 |
| 12×24 | 2 | 24×36 | 6 |
| 12×30 | 2.5 | 24×42 | 7 |
| 12×36 | 3 | 24×48 | 8 |
| 18×18 | 2.25 | 30×30 | 6.25 |
| 18×24 | 3 | 30×36 | 7.5 |
| 18×30 | 3.75 | 30×42 | 8.75 |
| 18×36 | 4.5 | 30×48 | 10 |
| 18×42 | 5.25 | 36×36 | 9 |
| 18×48 | 6 | 36×48 | 12 |
Mulch and Topsoil Calculations |
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| Step 1: | Length x Width = Area in Square Feet |
| Step 2: | Total Square Feet x # of inches deep ÷ 324 = yards of Mulch/Topsoil Needed |
Quick Reference Chart for Mulch and Topsoil (Cubic Yards) |
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| Square Feet | 2″ | 4″ | 6″ | 8″ | 12″ |
| 100 | 0.6 | 1.2 | 1.9 | 2.5 | 3.7 |
| 200 | 1.2 | 2.5 | 3.7 | 4.9 | 7.4 |
| 300 | 1.9 | 3.7 | 5.6 | 7.4 | 11.1 |
| 400 | 2.5 | 4.9 | 7.4 | 9.9 | 14.8 |
| 500 | 3.1 | 6.2 | 9.3 | 12.3 | 18.5 |
| 600 | 3.7 | 7.4 | 11.1 | 14.8 | 22.2 |
| 700 | 4.3 | 8.6 | 13.0 | 17.3 | 25.9 |
| 800 | 4.9 | 9.9 | 14.8 | 19.8 | 29.6 |
| 900 | 5.6 | 11.1 | 16.7 | 22.2 | 33.3 |
| 1000 | 6.2 | 12.3 | 18.5 | 24.7 | 37.0 |
Base Materials Chart (Cubic Yard) |
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| Bedding Course | ||||||||||||
| Square Feet | 1″ | 2″ | 3″ | 4″ | 5″ | 6″ | 7″ | 8″ | 9″ | 10″ | 11″ | 12″ |
| 50 | 0.3 | 0.3 | 0.5 | 0.6 | 0.8 | 0.5 | 1.1 | 1.2 | 1.4 | 1.5 | 1.7 | 1.9 |
| 100 | 0.3 | 0.6 | 0.9 | 1.2 | 1.5 | 1.9 | 2.2 | 2.5 | 2.8 | 3.1 | 3.4 | 3.7 |
| 150 | 0.5 | 0.9 | 1.4 | 1.9 | 2.3 | 2.8 | 3.2 | 3.7 | 4.2 | 4.6 | 5.1 | 5.6 |
| 200 | 0.6 | 1.2 | 1.9 | 2.5 | 3.1 | 3.7 | 4.3 | 4.9 | 5.6 | 6.2 | 6.8 | 7.4 |
| 250 | 0.8 | 1.5 | 2.3 | 3.1 | 3.9 | 4.6 | 5.4 | 6.2 | 6.9 | 7.7 | 8.5 | 9.3 |
| 300 | 0.9 | 1.9 | 2.8 | 3.7 | 4.6 | 5.6 | 6.5 | 7.4 | 8.3 | 9.3 | 10.2 | 11.1 |
| 350 | 1.1 | 2.2 | 3.2 | 4.6 | 5.4 | 6.5 | 7.6 | 8.6 | 9.7 | 10.8 | 11.9 | 13.0 |
| 400 | 1.2 | 2.5 | 3.7 | 4.9 | 6.2 | 7.4 | 7.6 | 9.9 | 11.1 | 12.3 | 13.6 | 14.8 |
| 450 | 1.4 | 2.8 | 4.2 | 5.6 | 6.9 | 8.3 | 9.7 | 11.1 | 12.5 | 13.9 | 15.3 | 16.7 |
| 500 | 1.5 | 3.1 | 4.6 | 6.2 | 7.7 | 9.3 | 10.8 | 12.3 | 13.9 | 15.4 | 17.0 | 18.5 |
| 550 | 1.7 | 3.4 | 5.1 | 6.8 | 8.5 | 10.2 | 11.9 | 13.6 | 15.3 | 17.0 | 18.7 | 20.4 |
| 600 | 1.9 | 3.7 | 5.6 | 7.4 | 9.3 | 11.1 | 13.0 | 14.8 | 16.7 | 18.5 | 20.4 | 22.2 |
| 650 | 2.0 | 4.0 | 6.0 | 8.0 | 10.0 | 12.0 | 14.0 | 16.0 | 18.1 | 20.1 | 22.1 | 24.1 |
| 700 | 2.2 | 4.3 | 6.5 | 8.6 | 10.8 | 13.0 | 15.1 | 17.3 | 19.4 | 21.6 | 23.8 | 25.9 |
| 750 | 2.3 | 4.6 | 6.9 | 9.3 | 11.6 | 13.9 | 16.2 | 18.5 | 20.8 | 23.1 | 25.5 | 27.8 |
| 800 | 2.5 | 4.9 | 7.4 | 9.9 | 12.3 | 14.8 | 17.3 | 19.8 | 22.2 | 24.7 | 27.2 | 29.6 |
| 850 | 2.6 | 5.2 | 7.9 | 10.5 | 13.1 | 15.7 | 18.4 | 21.0 | 23.6 | 26.2 | 28.9 | 31.5 |
| 900 | 2.8 | 5.6 | 8.3 | 11.1 | 13.9 | 16.7 | 19.4 | 22.2 | 25.0 | 27.8 | 30.6 | 33.3 |
| 950 | 2.9 | 5.9 | 8.8 | 11.7 | 14.7 | 17.6 | 20.5 | 23.5 | 26.4 | 29.3 | 32.3 | 35.2 |
| 1000 | 3.1 | 6.2 | 9.3 | 12.3 | 15.4 | 18.5 | 21.6 | 24.7 | 27.8 | 30.9 | 34.0 | 37.0 |
Actual volume may vary due to type of materials, moisture content, and compaction. We will not be held responsible in any way for product overage or shortage.
Base Material Calculations |
|
| The following formula is used to calculate amount of base material (3/4″ Crushed Gravel): | |
| Step 1: | Length x Width = Area (measured in square feet) |
| Step 2: | Area ÷ 12″ x Inches of Base required = Total Cubic Feet of Base |
| Step 3: | Cubic Feet of Base x 1.25 (compression factor) ÷ 27 = Yards of Base Needed |
Bedding Sand Calculations |
|
| The following formula is used to calculate amount of Bedding Sand (clean, sharp, well graded, 1-1.5″): | |
| Step 1: | Length x Width = Area (measured in square feet) |
| Step 2: | Area ÷ 12″ x 1″ (typical thickness) = Cubic Feet of Sand |
| Step 3: | Cubic Feet of Sand ÷ 27 = Yards of Sand Needed |
Traditional Spacing Guidelines for Groundcover |
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| 1 YR COVERAGE | 2 YR COVERAGE | |||
| Spacing on Center | Sq Ft per Plant | Spacing on Center | Sq Ft per Plant | |
| Ajuga | 8″ | 0.44 | 12″ | 1.00 |
| Euonymus ‘Coloratus’ | 10″ | 0.70 | 15″ | 1.56 |
| Pachysandra ‘Green Carpet’ | 6″ | 0.25 | 10″ | 0.70 |
| Sedum kamtschaticum | 8″ | 0.44 | 12″ | 1.00 |
| Vinca minor | 8″ | 0.44 | 12″ | 1.00 |
Sq. Feet of Planting Area ÷ Sq. Feet per Plant = # of plants needed
