How to Install a Seat Wall for a Patio

Mark the outline for the paver seat wall using landscaping spray paint on the side of the patio where you would like to install the seat wall. Make it two landscaping paver blocks wide.

Dig out the inside of the spray-painted outline for the seat wall to a depth of 8 inches, using a shovel.

Fill in the dug out outline to a depth of 6 inches using gravel. Tamp down the gravel with a tamper by striking it evenly in an up-and-down motion. This is the foundation for the seat wall.

Lay the first layer of landscaping paver blocks side-by-side, end-to-end along the entire gravel foundation. The first layer will rest 2 inches below the ground level, which will hold it in place.

Apply a zigzag bead of landscape block, stone and timber adhesive over the top surface of each block in the first layer using a caulk gun equipped with a tube of the adhesive.

Lay a second layer of block. Stagger the joints between layers to make the wall more secure. Press each block firmly into place over the first layer to ensure a solid bond. Repeat the process of Step 2 to add a bead of adhesive between each layer of block. Continue building up the wall until you reach a height of approximately 16 inches.

Apply a final bead of adhesive over the top layer of block using the same technique you used in Step 2. Lay flagstone slabs end-to-end across the top layer of block. Center the flagstone so that an even amount of stone overlaps each side of the seat wall. This will provide you an attractive seating surface on top of the wall.