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Use the following table to estimate the interior space for the boulder 113:

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 16
2 16 16
6 Inches   15
6 15 15  
10 Inches   15
10 14.5 14.5
14 Inches   15
14 14.5 14  
18 Inches     15
18 14 13.5
22 Inches     14.5
22 14 13.5  
26 Inches     14
26 13.5 13.5  
30 Inches     13.5
30 13.5 13  
32 Inches     13.5
32 13 13  
33 Inches     13
33 13 13