GEM DIRT, LLC.
"Tulsa's Best Topsoil"
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Depth Chart
Depth Chart

 Soil Testing Available!

Top Soil Depth Chart
SQ FT / Soil Depth = number of yards needed
Delivery available for amounts of 2 yds - 12yds. 

SQ FT/
depth
1"
2"
3"
4"
5"
6"
7"
8"
9"
10"
11"
100
.5
.75
1
1.25
1.5 
2
2.25
2.5
2.75
3
3.5
150
.5
1
1.5
2
2.5
2.75
3.25 
3.75
4.25
4.75
5
200
.75
1.25
2
2.5
3
3.75
4.5 
5
5.5
6.25
6.75
250
.75
1.5
2.5
3
4
4.75
5.5
6.25
7
7.75
8.5
300
1
2
2.75
3.75
4.75
5.5
6.5
7.5
8.5
9.25
10
350
1
2.25
3.25
4.5
5.5
6.5
7.75
8.75
9.75
11
12
400
1.25
2.5
3.75
5
6.25
7.5
8.75
10
11.25
12.5
13.75
450
1.5
3
4.25
5.75
7
8.5
9.75
11.25
12.5
14 
15.5
500
1.5
3
4.75 
6.25
7.75
9.25
10.75
12.5
14
15.5
17
600
2
3.75
5.75
7.5
9.25 
11.75
13
15
16.75
18.5
20.5
700
2 .25
4.5
6.5
8.75
11
13
15.25 
17.25
19.5
21.75
24
800
2 .5
5
7.5
10
12.5
15
17.5
20
22.25
24.75
27.25
900
3
5.75
8.5
11.25
14
16.75
19.5
22.25
25
28
30.75
1000
3.25
6.75
9.5
12.5
15.5
18.5
21.75
24.75
28
31
34
2000
6.25
12.5
18.5
24.75
31
37
43.25
49.5
55.5
61.75
68
3000
9.25
18.5
28
37
46.5
55.75
65
74
83.5
92.75
102
5000
15.5
31
46.5
61.75
77.25
92.75
108
123.5
139
154.5
169.75

To use the chart above just determine the square footage of the area and look for that number to the left side of the chart. Then determine the depth of the topsoil or mulch you feel is needed and find that number along the top of the chart. Where the two boxes intersect will be the approximate cubic yards of topsoil or mulch needed. Remember, when using the chart for topsoil calculations, add 20% to the yardage recommended on the chart to account for compaction.


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