Learn how to build an Allan Block gravity wall. A gravity wall is a retaining wall that uses the weight of the blocks combined with the friction of the blocks, gravel and soil to give the structure its strength. Gravity walls do not use geogrid reinforcement.
A gravity wall is a retaining wall that uses the weight of the blocks combined with the friction of the blocks, gravel and soil to give the structure its strength. Gravity walls do not use geogrid reinforcement. This video shows how to build an Allan Block gravity wall.