Stack bond lines pavers up in a straight grid, with every joint running through in both directions. It looks tidy and modern, especially with square pavers and large slabs. The calculator starts with a 20 × 20 cm square paver, which means 25 pavers per m² without joints.
Where stack bond works
Patios, seating areas and paths with straight edges suit it best. On driveways it is the weaker choice: the continuous joints let pavers shift under braking and turning. There, herringbone is the usual pick.
Keeping the grid true
Because the joints run straight, small deviations add up and become visible over a few metres. Run string lines in both directions and keep the joint width constant with spacers. The optimizer can suggest a joint width at which full pavers reach the edge, so the grid ends cleanly.
A diagonal grid
The planner also offers the Diagonal pattern for square and rectangular pavers. It turns the grid by 45°, which looks livelier but cuts every edge paver at an angle. Compare the cut counts of both before you order.
FAQ
Stack bond or running bond?
Running bond hides small errors better and interlocks more. Stack bond has the cleaner look but needs more care when laying.
How many pavers do I need?
25 per m² at 20 × 20 cm without joints. The shopping list adds joints and your waste allowance for the exact outline.