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Use the following table to estimate the interior space for the boulder 111:

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 31
2 40 4
2 36 10
2 28 24  
2 26 26  
4 Inches   31
4 39 4  
4 35 10
4 30 16  
4 27 24  
4 26 25  
6 Inches   30
6 39 4
6 35 10
6 30 14  
6 27 24  
9 Inches   30
9 35 8  
9 30 14  
9 27 24  
12 Inches     28
12 34 4
12 26 12
12 24 24  
13     25
13 32 4  
13 23 21