Annuals Annual Maintenance Climbing Vines Fertilizer Ground Covers Hedges Hosta If I were a tree... Japanese Maples Lawns Native Plants Ornamental Grasses Perennials in Bloom by Month Planting Techniques Ponds Pruning Roses Shade Gardening Shrubs Soil Calculator Soil Conditions Trees Watering What's Bugging Your Garden Zone Map

Soil Calculator

Use the following information as a guide to calculate soils, mulches, aggregates and other landscape requirements.

How to Order Soil:
Length (Ft) x Width (ft) x Depth (inches) divided by 12 divided by 27
eg. 36' x 18' x 3" divided by 12 divided by 27 = 6 cubic yards

Coverage Chart (square feet) Depth in Inches
cu. yds	1	2	3	4	5	6	7	8	9	10
1	324	162	108	81	65	54	46	40	36	32
2	648	324	216	162	130	108	93	81	72	65
3	972	486	324	243	194	162	139	122	108	97
4	1296	648	432	324	260	216	186	162	144	130
5	1620	810	540	405	324	270	231	203	180	162
6	1944	972	648	486	388	324	278	244	216	194
7	2289	1145	763	572	458	382	333	286	254	229
8	2592	1296	864	648	520	432	372	324	288	260
9	2916	1458	972	729	583	486	417	365	324	290
10	3240	1620	1080	810	650	540	460	400	360	320

Coverage per Cubic Yard
Product	Minimum depth for coverage	approximate coverage
Limestone screening	1"	250 sq. ft
3/4" crushed limestone	1 ½ - 2"	100 - 140 sq. ft
Red crushed tiles	1 ½ - 2"	100 - 140 sq. ft
2" - 6" Riverstone	5" - 6"	50 sq. ft
Cedar wood chips or coloured mulch	2"	125 sq. ft
Shredded Pine Mulch (SPM) or cedar mulch	2"	150 sq. ft
HPB - 1/4" chip	2"	150 sq. ft

Weights and Measures

1 cubic yard of 3/4" gravel or pea gravel weighs approximately 1.1 tons

1 cubic yard of limestone screening or sand weighs approximately 1.4 tons

1 cubic yard of red tile weighs approximately 1 ton

1 cubic yard of 2-6" beach pebbles weighs approximately 1.5 ton

Bagged Products (to cubic yards)

4418kg bags of gravel = 1 cu. yd

3125L bags of soil = 1 cu. yd

2630L bags of triple mix = 1 cu. yd

13 2cu. Ft. Bags of mulch or bark = 1 cu. yd.

OTHER LANDSCAPE CALCULATIONS

Sod

1 roll of sod = 9 sq. ft (each roll approx. 24"wide and 54"long)

Conversion factor: number of square feet to be covered divided by 9 = # of rolls of sod needed

Number of square yards = # of rolls of sod needed.

Pond Liner - determining the correct liner size

1.Measure the maximum dimensions of your pond

______L = length in feet

______D = depth in feet

______W = width in feet

2. Use the following formula to determine the correct liner or underlay size, by filling in your above numbers

(D x 2) + L = Liner length + 2' for overlap = final liner length

(D x 2) + W = Liner width + 2' for overlap = final liner width

3. The liner you require will be the final liner length by the final liner width.