What is the requirement for stacking masonry blocks higher than 6 ft?

Stacking masonry blocks higher than 6 feet requires specific safety measures to ensure stability and prevent accidents. The correct requirement is that the blocks must be tapered back one-half block per tier above the 6 ft level. This tapering provides a wider base for the higher tiers, which enhances their stability and reduces the risk of the wall toppling over or collapsing due to external forces such as wind or vibration.

Tapering creates a safer construction practice by ensuring that the weight distribution of the blocks is more balanced. Without this tapering, the risk of a structural failure increases significantly, especially as the height of the stack increases. This requirement directly addresses safety concerns in construction environments where masonry is a common material, helping to protect workers and maintain safe working conditions on-site.

Other configurations or stacking methods that do not involve tapering would not meet safety standards and could compromise the integrity of the structure. Therefore, complying with the tapering requirement is crucial for safe masonry block stacking.