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Q. What type of footing is required for Wall Systems?
A. A compacted stone base is required for all segmental retaining walls. This varies in thickness from a minimum of 2" for NurseryStone™ to a minimum of 4" for StoneWall® SELECT™. Generally, the higher the wall, the thicker the base.
Q. How tall can I build my segmental retaining wall?
A. Designed and installed properly, segmental retaining walls can be built in excess of thirty feet high!
 Q. What is geogrid?
A. Geogrid is an open-celled, directional fabric placed between layers of blocks perpendicular to the wall face. This stabilizes the soil mass behind the retaining wall and ties the wall face to the earth being retained.
Q. What do I use to backfill my wall?
A. Walls are backfilled 6"-12" with clean stone to help relieve hydrostatic pressure. The area behind the stone should be compacted soil.
Q. I need steps in my retaining wall. What can I do?
A. All retaining wall products can be used for steps. Wall units are used for the risers and capstones for the treads. Make sure to adhere to local codes for minimum step height, tread depth and hand rail requirements.
Q. Can I make a curved wall?
A. Yes! Blocks with tapered sides are used for outside curves, and inside curves are created by placing the front corners together and gapping the units in the back.
Q. Can I build a freestanding wall?
A. Presently all wall systems are designed with one rock face side. Freestanding walls are made by building two walls back to back with geogrid to tie the walls together.
IMPORTANT NOTE REGARDING EFFLORESCENCE: Efflorescence is a whitish powder-like deposit, common on concrete and masonry products, that normally will disappear over time with weathering. Although it may present an aesthetic concern, efflorescence will not affect the structural performance of pavers or wall systems. Efflorescence is a natural occurrence for which Think Pavers accepts no responsibility or liability. Contact ThinkPavers Hardscaping canter for additional information and a copy of the International Concrete pavement Institute (ICPI) publication "Managing Efflorescence."
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