The Importance of Block BondStandard concrete block installation requires a mason to lay out the entire building on “Block Bond”. Block bond is accomplished when a mason starts at one point of the building and lays out the walls so that whole blocks are used completely around the structure and back to the starting block with a full block. The result is that when the block crosses over doors and windows, there is a continuous ‘running bond’.
The blue marks in this photo below indicate that a full block will start in the right corner and continue to the left and the returning block will be a full block. Full block are then used throughout except at door and window breaks, which will require the use of half block.