Concrete Masonry Units (CMU) are used in virtually every type of building construction. Standard block are common in the load bearing walls of buildings. These blocks are available in a variety of sizes are are categorized by block width. Blocks are produced with actual dimensions 3/8 in. smaller to allow for a mortar joint. A variety of finished wall appearances can be achieved by varying the size, color, or bond pattern. See below for a list of common terms and abbreviations.
Block that has one smooth end with one Stretcher End
Single Bull Nose
One Corner of the face side of the block is rounded
Double Bull Nose
Two Corners on one end of the block are rounded
Block has a vertical groove on the end for control joint or windows and door installations.
Block has a centered, vertical score on the face to appear like two half block
Length of the block is 1/2 the length of standard block
Height of the block is 1/2 the height of standard block
Hollow Bottom Bond Beam
Knockout walls are provided.
Solid Bottom Bond Beam
Block has a solid, flat bottom
Signifies that the block has a rough textured face