How to set a parallel herringbone pattern for a brick-in-sand patio.
When you lay out the site, either set its interior dimensions (inside the border brick) to correspond to the dimensions of the pattern or install edge restraints and the borders on two adjacent legs only. When you reach the other side, you can lay the last brick and borders, then the edge restraints. Spread bricks along the site so they're readily at hand as you lay the pattern. Starting at one corner, lay a pair of full bricks at right angles, then a half brick next to each full brick.