Tapered Sierra Classic Estate Wall Coping Wall Block | UNPEWCOPINGSR

Key Features

• Capacity - gravity walls upto 39 in., geogrid reinforced walls upto 10 ft.
• Recommended base stabilization - one layer of DriveGrid™ stabilization grid between subgrade and base material
• Standard base - minimum 6 to 8 in. of 3/4 in. crusher run gravel (any road base standard in accordance with ASTM-D2940) compacted to 98% standard proctor density (SPD)
• Alternative permeable base - minimum 6 to 8 in. of 3/4 in. clear open-graded stone compacted to achieve full particle lock up and consolidation
• Levelling - levelling retaining wall blocks directly on top of gravel is tedious and generally does not yield the best results
• Connection - features channels on top and bottom of each stone which are connected using a small insert provided with the system
• Packaging: 63 Unit/Bundle, 7 Layer/Bundle, 0.23 Face ft/Unit, 14.7 Face ft/Bundle, 2.1 Face ft/Layer