In which bond pattern are headers centered on stretchers and made up of alternate courses?

The bond pattern where headers are centered on stretchers and made up of alternate courses is known as English bond. In this type of bonding, each course alternates between headers (the shorter, vertical bricks) and stretchers (the longer, horizontal bricks), creating a strong interlocking pattern. This arrangement enhances the structural integrity of the wall due to the staggered alignment of the bricks, which provides excellent load distribution and resistance to lateral forces.

In English bond, the headers in one course are aligned directly above the stretchers in the next course, resulting in a sturdy and visually appealing wall. This bond is commonly utilized in brick masonry, particularly in load-bearing structures, because of its strength and reliability.

Other bond patterns, such as running bond, Flemish bond, and common bond, do not exhibit the same alternating centered header-stretcher configuration that defines English bond. Each of these alternatives has unique characteristics and applications, but they lack the specific arrangement where headers are neatly centered over the stretchers in alternating courses, making English bond distinct in its design and structural benefits.