The following table will help you determine the number of trees needed, per acre, based upon tree spacing.
| Spacing (feet) | Tree (number) | Spacing (feet) | Tree (number) | Spacing (feet) | Tree (number) |
|
2x2
|
1,890
|
7x9
|
691
|
12x15
|
242
|
|
3x3
|
4,840
|
7x10
|
622
|
12x18
|
202
|
|
4x4
|
2,722
|
7x12
|
519
|
12x20
|
182
|
|
4x5
|
2,178
|
7x15
|
415
|
12x25
|
145
|
|
4x6
|
1,815
|
8x8
|
681
|
13x13
|
258
|
|
4x7
|
1,556
|
8x9
|
605
|
13x15
|
223
|
|
4x8
|
1,361
|
8x10
|
544
|
13x20
|
168
|
|
4x9
|
1,210
|
8x12
|
454
|
13x25
|
134
|
|
4x10
|
1,089
|
8x15
|
363
|
14x14
|
222
|
|
5x5
|
1,742
|
8x25
|
218
|
14x15
|
207
|
|
5x6
|
1,452
|
9x9
|
538
|
14x20
|
156
|
|
5x7
|
1,245
|
9x10
|
484
|
14x25
|
124
|
|
5x8
|
1,089
|
9x12
|
403
|
15x15
|
194
|
|
5x9
|
968
|
9x15
|
323
|
15x20
|
145
|
|
5x10
|
871
|
10x10
|
436
|
15x25
|
116
|
|
6x6
|
1,210
|
10x12
|
363
|
16x16
|
170
|
|
6x7
|
1,037
|
10x15
|
290
|
16x20
|
136
|
|
6x8
|
908
|
10x18
|
242
|
16x25
|
109
|
|
6x9
|
807
|
11x11
|
360
|
18x18
|
134
|
|
6x10
|
726
|
11x12
|
330
|
18x20
|
121
|
|
6x12
|
605
|
11x15
|
264
|
18x25
|
97
|
|
6x15
|
484
|
11x20
|
198
|
20x20
|
109
|
|
7x7
|
889
|
11x15
|
158
|
20x25
|
87
|
|
7x8
|
778
|
12x12
|
302
|
25x25
|
70
|
Each tree species is different in its need for sunlight, moisture, and soil type. Different trees grow at different rates. Some mature in 40 years, others take a hundred. Ask a forestry professional if you have questions about which trees to plant on a given site. Find your local forestry office.