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Use the following table to estimate the interior space for the boulder 101:

Rectangular measurements of all rocks may have more space in the middle than listed due to width interference at the corners.  When choosing a rock enclosure for an application, note the shape of the rock as well as the application measurements.

Height (@) Length (max) Width (max) Diameter (max)
2 Inches     24
2 32 6
2 26 14
2 24 16
2 20 20
4 Inches   22
4 32 6
4 30 8
4 24 16
4 20 19
6 Inches   19
6 30 3  
6 25 12
6 18 18
8 Inches   18
8 28 3
8 22 16
12 Inches   16
12 20 12
12 16 16
14 Inches   13
14 16 6
14 14 12
16 Inches   10
16 10 10
18 Inches   7
18 8 7
20 Inches   3
20 3 3