Which bond is more robust than stack bond due to alternating courses of bricks?

The most robust bond due to alternating courses of bricks is the English bond. English bond consists of alternating rows (courses) of stretchers (bricks laid lengthwise) and headers (bricks laid widthwise). This configuration lends strength to the wall because the headers tie the courses together, enhancing the bond between layers.

In contrast, running bond consists entirely of stretchers in each course, which, while useful for certain applications, does not provide the same interlocking strength that is characteristic of the English bond. Flemish bond, although aesthetically appealing and featuring alternating stretchers and headers within the same course, lacks the robust vertical alignment provided in English bond. Half bond is typically not used as a standalone method but rather describes a technique for staggering the joints in other types of bonds, further demonstrating why it does not match the robustness of English bond.

The structural integrity and stability offered by the English bond make it a preferred choice for heavy-load-bearing walls. Its design minimizes the risk of lateral movement or failure, distinguishing it from other bond types.