12" X 3" X 12" Sierra Coping Tapered Classic Olde Quarry Wall Unit | 0574CS0028821-0

Key Features

• Capacity - walls upto 2 ft. (60 cm) in height and hardscape features up to 4 ft. (1.2 m)
• Recommended base stabilization - one layer of DriveGrid™ stabilization grid between subgrade and base material
• Standard base - minimum 6 in. - 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 - mechanical (use plastic insert provided) or adhesive, make sure surface is clear of dust before gluing, always read adhesive manufacturers directions
• Handling - no specific handling instructions
• Packaging: 96 Unit/Bundle, 8 Layer/Bundle, 0.250 Face Feet/Unit, 24 Face Feet/Bundle