Block with multifaceted bottom surface

摘要

A block for use in constructing a retaining wall having a bottom with a non-planar portion which creates a gap between the bottom surface and the top surface of a lower course of similar blocks when the block is placed thereon. The gap allows the block to rest on the lower course of blocks in a stable, level manner by providing a space where small amounts of rubble and dirt may exist without interfering with the stacking of the blocks. The non-planar, preferably concave, portion is also advantageous in that it reduces the unit weight of the block without significantly affecting the structural integrity of the block. Preferably, the block's bottom surface also has a plurality of grooves which further reduce the weight of the block and provide areas of increased relief for larger stones. The grooves may be "V" shaped, and have angled walls for directing larger stones into the areas of increased relief when the block is being placed on a lower course of similar blocks.