Concrete blocks, known as CMUs in the construction industry (concrete masonry unit) are laid up with mortar, and filled with grout, to form the stair – Retaining Walls. Doors and other elements for back yards decorations or walls  to hold spacing. JS Landscape specializes in block installation for Residential & Commercial services in all the bay area..


CMU Walls build On site with concrete blocks are often stacked in layers called courses with half a block offset in what is called stretcher bond. Blocks are ‘glued’ together with mortar joints, concrete mortar  trowelled between horizontal courses and vertical blocks.

Steel reinforcement with rebar is placed horizontally in special blocks called knockout blocks as the wall is built and vertically in some of the hollow cores once a certain height of block wall is built. we can build any shape and size of CMU walls with cinderblocks..