What is a cross bond?
Cross bond is a brick bond pattern in which the bricks in successive courses are staggered by half a brick, so that the perpends (vertical joints) of one course fall over the centre of the bricks in the course above and below. This creates a diamond pattern in the wall and gives it high strength because there are no continuous vertical joints running through the wall.
How does cross bond work?
In cross bond, the brick courses are laid so that:
- Odd-numbered courses begin with a full brick
- Even-numbered courses begin with a half brick (closer)
- The perpends (vertical joints) never align directly above one another
This creates a strong, regular pattern that resembles a grid.
Cross bond vs. other bonds
| Bond | Offset | Characteristic |
|---|---|---|
| Stretcher bond | Half brick per course | Thin wall (1 brick wide), most widely used |
| Cross bond | Half brick, but with specific perpend pattern | Strong, regular pattern |
| Stack bond | No offset (dangerous!) | Weak — never use structurally |
| Flemish bond | Alternating stretchers and headers in each course | Decorative and strong |
| English bond | Alternating courses of stretchers and headers | Thick, strong walls |
Applications of cross bond
- Garden walls
- Fence bases
- Load-bearing partition walls (non-cavity)
- Decorative external walls
- Historic restoration work
Laying cross bond — step by step
- First course: lay full bricks from left to right
- Second course: begin with a half brick (closer), then full bricks
- Third course: same as the first course
- Repeat the pattern: the offset must be maintained consistently
- Corners: require extra care — use three-quarter bricks to keep the bond intact
Cross bond for a garden wall
For a freestanding garden wall, cross bond is a good choice:
- Half-brick wall (100–110 mm thick): suitable up to approximately 1 m high
- One-brick wall (215 mm thick): up to approximately 1.80 m — here a double-leaf cross bond can be used
- Always cap the top with a weatherproof finish (coping, flashing or a soldier course)
Related terms
- Bond pattern
- Half-brick wall
- Stretcher course
- Header course
- Perpend
- Bricklaying
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