how to estimate pile

4:02

5:42

23:20

17:30

4:31

5:31

12:40

23:05

14:03

8:13

5:40

5:47

15:11

7:26

8:14

34:09

2:53

11:13

32:44

3:41

2:52

5:50

6:23

18:47

13:40

4:27

5:38

7:01

4:49

26:44

56:02

12:07

12:10

2:18

13:00

11:10

3:37

16:08

55:54

59:01

5:50

17:15

2:08

5:20

28:04

14:26

56:51

6:07

10:29

2:11

11:13

9:23

25:32

7:22

12:47

6:48

24:47

3:54

6:54

2:46