Measure the area where you plan to build the raised garden. You can build a raised bed in any size you like. Standard sizes tend to be 4 feet by 4 feet or 4 feet by 8 feet.
Place a stake in one corner of the measured area. Drive it into the ground with a hammer. Repeat in the other corners with the other three stakes.
Tie a piece of twine to the first stake. Bring the twine over to the stake that sits straight across vertically. Loop the twine around the second stake, then repeat with the last two stakes, until you have a rectangular or square shape in twine. Adjust the stakes as necessary to give each corner a 90-degree angle.
Lay a single layer of bluestone bricks along the perimeter of the garden bed, using the twine as a guide.
Stack a second layer of bluestone brick on top of the first. Stagger the bricks so that the spaces between each brick in the first layer line up with the midpoint of a brick in the second layer.
Lay a third layer of brick over the second, staggering the bricks so that they're lined up with the bricks in the first layer. The stacked brick should be about 6 inches high.
Remove the stakes. Place a landscape liner inside the brick garden bed. Trim it to size with scissors as necessary.
Fill the raised bed with garden soil.